How to Label Coin Inventory: 2x2s, Slabs, and Barcodes

To label coin inventory, give every coin a unique SKU, then print a label for each 2x2 holder or slab sleeve with the SKU as a barcode, the title, the grade, and the price. Add a cost code if you want staff to see your cost and customers not to, and the storage location if coins move around. Use one label template per label size, and print labels from your inventory records, never by hand.

A label is how a coin connects to its record. When labels are handwritten, every scan, count, and sale starts with someone reading and typing. When labels carry a barcode of the SKU, a scanner does the reading and the record opens at once.

Start with a SKU for every coin

A SKU is a short code that belongs to one coin and never changes. Rules that keep SKUs useful:

• Unique. No two coins share one, ever, even after a coin sells.
• Short. It has to fit on a 2x2 label and be typeable when a scan fails.
• Meaningful only if it helps. A prefix for the source works well, such as "JS-0042" for coins bought from one contractor. Do not pack the grade or price into the SKU; those can change.

Slabs already carry a cert number, which is unique for each grading service. It is useful for lookups, but keep your own SKU too. Raw coins have no cert, and you need one system for all of them.

What to print on the label

Field	Use it when
SKU	Always
Barcode of the SKU	Always, if you scan
Title	Almost always: "1881-S Morgan Dollar"
Year, mint mark, and denomination	When the title is long or missing
Grade and grading service	For slabs and graded raw coins
Cert number	For slabs, if the slab's own label is hard to read in a sleeve
Price	For coins in a case or at a show
Cost code	When staff need to know your floor
Location	When coins move between safes, cases, and shows
Lot number	For coins assigned to an auction

More fields mean smaller type. On a small 2x2 label, pick the SKU, title, grade, price, and a barcode.

Barcode, QR code, or both

	Code 128 barcode	QR code
Holds	The SKU	A link, such as the coin's page
Reads with	Any handheld barcode scanner, phone camera	Phone camera, 2D scanners
Space	Long and thin, fits a narrow label	Square, needs height

A barcode of the SKU is the safe default: every scanner reads it, and the SKU is what counts and picklists look for. A QR code is useful when staff use phones and you want the coin's page to open. If the label is big enough, print both.

Label sizes coin dealers use

There is no standard coin label, but a few sizes are common:

• Thermal roll labels around 2 x 1 inches or 2.25 x 1.25 inches, from Dymo, Zebra, or Rollo printers, for the side or back of a 2x2 holder or a box.
• Small holder labels around 1 x 0.5 inches, for the flap of a 2x2.
• Slab labels around 2.75 x 0.875 inches, for a sleeve or the back of a slab box.
• Letter sheets such as Avery address labels, printed on a laser printer, when you print many at once.

Check the exact size your printer supports before buying a roll. Many dealers avoid putting adhesive labels directly on the slab itself and label the sleeve or box instead. Decide what you are comfortable with for the coins you sell.

Cost codes: your cost, hidden in plain sight

Dealers have long printed cost on tags in a code. Pick a word or phrase with ten different letters, and let each letter stand for a digit.

Worked example with the word BLACKHORSE:

B	L	A	C	K	H	O	R	S	E
1	2	3	4	5	6	7	8	9	0

A coin that cost $325 gets the code ALK. A coin that cost $1,040 gets BECE. Staff who know the word can see the floor at a glance. A customer sees letters. Change the word if a former employee knew it.

Keep the cost code tied to the coin's real cost in your records. If you change a coin's cost, the next label should show the new code.

Printing labels in batches

Label coins when they enter inventory, as part of the purchase, not later. Then:

1. Select the coins you just added.
2. Choose the template for your printer.
3. Print one label per coin, or more if you label the box too.
4. On a sheet that is partly used, skip the used positions so labels land on empty spots.

Reprint a label whenever the price, grade, or location changes.

Common mistakes

• Handwritten labels. Nothing can scan them, and two people write the same coin differently.
• SKUs that encode the price. The price changes; the SKU should not.
• Too many fields on a small label. Type below about 6 points is hard to read in a show case.
• Barcodes that do not hold the SKU. If the scanner reads something your system cannot look up, the barcode is decoration.
• Old labels left on. A relabeled coin with two labels scans as whichever one the scanner sees first. Remove the old one.

How CoinManagerPro prints labels

CoinManagerPro labels use templates. A template has a size (Dymo, Zebra, and Rollo rolls, 2x2 holder labels, slab labels, Avery sheets, or a custom size), the fields to print (SKU, lot number, title, year with mint mark and denomination, grade and grading service, cert number, price, cost code, and location), and the code: a Code 128 barcode of the SKU, a QR code with the coin's link, both, or none. A coin with no value for a field skips it, and a preview shows the label as you build it.

To print, select coins on the Coins page and choose Print labels, pick the template, set the number of labels for each coin, and skip used positions on a sheet. The labels open in a new tab at the right size, and you print from the browser. Cost codes come from a code word you set in settings, and members who can view cost can decode a code in the app. Scanning a CoinManagerPro label, an RFID tag, or a slab cert number opens the coin. The steps are in the print labels help article. The same barcodes are what you scan in stock counts and picklists.

The short version

Give every coin a permanent SKU. Print labels from your records with the SKU as a barcode, plus the title, grade, and price. Add a cost code and location if they help. Pick a label size your printer supports, label coins when they arrive, and reprint when anything on the label changes.