A two-day show is not one event. It is four inventory moves stacked on each other: load out Friday, sell Saturday, pack down Saturday night, sell again Sunday, then load home while the hall empties around you.
Almost every "we came home light" story traces back to one of those four moves rather than to anything dramatic. A tray went back in the wrong box. A trade came over the table and never made it onto a list. Singles got poured into a long box at 6pm because the hall was closing and the count would happen later, and later never arrived.
This is a numbering playbook for that weekend. It is bookkeeping. The numbered label is only the index; the sheet is the record.
Start with the count-out sheet, not the seals
Build the sheet before a single box gets taped. Five columns and no more, because you fill it in on a folding table with someone waiting to buy:
- Number — the printed number on the tray, box or holder.
- Contents — one line. "Prizm base 2020-21, ~400" is a line. "Assorted" is not.
- Count — how many pieces, counted once, at home, with the door shut.
- Out — ticked when it leaves the house Friday.
- Back — ticked when it comes home Sunday.
Everything sold, traded or added gets a new row, never an edit to an old one. A sheet you amend cannot be read backwards on Monday; one you only append to is a timeline.
The point of a printed number is that step three happens once. If your containers wear masking tape, the count restarts every time somebody moves a box — nothing on the outside tells one white 800ct from another. Numbering storage boxes and show inventory covers the container side.
What to number, and what to leave alone
Number the container. Never the card.
A Serial Seal is a die-cut printed holographic foil label that goes on the plastic of a holder, case, bag or box. Never on a card, never on factory-sealed wax, never on a holder headed to a grading company. That rule does not bend for a show weekend.
Three things at a table earn a number:
- Show boxes. Long boxes, monster boxes, the bin under the table. One number per box, on the end you read across a table. The Large label — 2.5 x 1 in — reads from standing height.
- Case items. Slabs, one-touches and toploaders sitting in the display with a price on them. Standard label, 1.77 x 0.75 in. Where to put a seal on every card format is the placement map, and top loaders is the page most show tables need.
- Anything leaving the table in someone else's hands — a mailer for a buyer, a hold for the guy coming back Sunday morning.
Bulk gets one number for the box, not one per card. You are indexing containers, not cataloguing dime boxes.
The Duo layout earns its keep here: two halves on one label, each with its own number, cut apart at the bench. One half lands on the tray, the other on the count-out sheet beside the row, so tray and paper carry matching numbers with nothing written by hand.
Numbering that survives more than one show
Set the scheme in the builder before you order — a prefix plus a sequence counting up from a start number you choose, random codes, a batch code plus a number, or no number at all. For show inventory, use the prefix and let it count.
Run one sequence for everything, not one range for slabs and another for boxes, and prefix it by business rather than by event: your own initials, not MAR22. Within one order no two seals share a number, and continuity across orders is a field you set — start the next run one past your last.
The Saturday night pack-down
This is the move that eats counts. The hall is closing, you are tired, and the temptation is to sweep the table into whatever box is nearest.
Pack down by number, not by pile:
- Every case item that did not sell goes back into the tray whose number it left. If it does not, it gets a new row.
- Every sale gets its number crossed off with the price and the date.
- Anything you opened during the day is a fresh row: old number closes, new one opens.
- Photograph each loaded box with the number legible before the lid goes on. Thirty seconds a box.
- Read the sheet against the stack before the last tote closes.
Once you peel a label, that tray has spent its number. Order spares — one per box you expect to open per day. Sunday morning setup is this same list in reverse, which takes four minutes if Saturday night was honest and forty if it was not.
The returning trade
The hardest inventory at a show is what walks towards you. A buy or a trade arrives with no history in your system, and by Sunday you will not remember which of three deals it came from. Do this at the table, before it goes into the case:
- Give it a number immediately. Standard label on the holder.
- Photograph it in hand with your buy sheet in the same frame, number legible.
- Write the row: number, what it is, who it came from, what you paid, the date and the show.
That row is the entire value: a number and a photo made at a known time. If the piece ships out after the show, the number in the listing photo is the number on the holder in the box, which helps document what was shipped and helps deter swaps and return fraud. If it comes back, you compare a dated photo to what is in your hand instead of two memories.
The labels also take an optional QR pointing at a page you choose, or at the seal record — a page showing the design, the number and the date it was logged. It says nothing about the card. Your numbers live in your private log, and any one of them can be looked up here.
Sunday night: reconcile before you unload
Three totals, taken in the car park or at the kitchen table, before the boxes disappear into the room:
- Out — what the sheet says left on Friday.
- Closed — sold and traded rows, with prices.
- Back — what came home, read off the numbers.
Out minus closed should equal back. When it does not, the number tells you which tray, which day and which photo to open — a different conversation from "one of the boxes." Most gaps turn out to be a row nobody wrote.
Case items going back into the display can also carry a printed display sticker with your own displayed grade — a separate product, packs of 12. Custom collector display sticker. Not affiliated with or certified by any third-party grading company.
What a seal will not do
Plainly, because someone will ask:
- It peels. A label can be lifted off a tray and a different label put down in its place. That is true of this product and every product like it.
- It says nothing about the card. The number describes a container and a row in your sheet, not what is inside, what grade it is, or whether it is real.
- It has no standing with any marketplace or grading company. Nobody is obliged to look at it, and nobody has agreed to.
- It does not decide a return. A return is decided by the marketplace's own process, on the records both sides bring. Your dated photo and your log are records you brought — nothing more, nothing automatic.
Everything useful here is the number plus your own habit of writing it down.
What a show run costs
Standard, 1.77 x 0.75 in, in Shattered Prism or Aurora foil: $6.00 per pack of 12, 60-label minimum at $30.00, which is 50c each. The rate falls to 45c at 120, 40c at 600, 36c at 1,200, 33c at 2,400 and 30c at 4,200. Self-serve runs top out at 10,008; larger runs are quoted.
Large, 2.5 x 1 in: $9.00 per pack of 12, 60 minimum at $45.00, which is 75c each. Then 10% off at 120, 20% at 600, 30% at 1,200 and 40% at 4,200, which works out at 45c each.
A worked weekend: 36 boxes and totes taking a Large number on the end, plus 180 case items on Standard. The Large 60-count minimum, $45.00, covers the boxes with 24 spares left over; 180 Standard at the 120 rung is 45c each, so $81.00. That is $126.00 for a season, not a weekend. One order gets one rate, so buying the season at once rates lower than four top-ups.
Layouts: flat portrait or landscape, folded, slab banner, toploader banner, Duo. Running a counter as well as a table? One sequence covers both — see card shops.
Frequently asked questions
How many labels does a two-day show actually take?
Count containers, not cards. Boxes and totes get one each, case items get one each, then add spares for anything you expect to open at the table. A table running 36 containers and 180 case pieces lands near 240, and box numbers do not repeat next show.
Should I number the box or the card inside it?
The box, or the holder the card sits in. Adhesive never goes on a card, on factory-sealed wax, or on a holder headed to a grading company. The sheet is what ties a container's number to its contents.
What do I do when a numbered tray gets opened at the table?
Close that row and open a new one. Peeling a label ends its usefulness as an index, so the move is a fresh number on the repacked tray with the old number written beside it on the sheet. That is why spares matter more than sellers expect.
Does any of this help with a chargeback or a return?
It lets you answer with records instead of recollection. A dated photo of a numbered holder, plus the row you wrote at the table, is documentation you can hand over. It carries no special weight with any marketplace, and the marketplace's own process decides the outcome. Our notes on return documentation go further.
Getting ready for a weekend? Set your prefix and start number, pick a layout, and price the run against your real container count in the Standard builder or the Large builder — and the show-specific version of all this lives on card shows.