When a making process leaves differences between pieces, describe what can vary, such as glaze, grain, colour, or dimensions. Separate intentional variation from a defect: show cracks, loose joins, or uneven finishes on the particular item and explain how they affect its use.
If an order is made to a customer's choices, name the options they can select and clarify which details may still vary. Use a photo of the item for sale when it is one of a kind; label earlier examples as examples instead of implying every piece will match them.
A repeatable batch and a one-off piece need different stock notes. Record what is actually finished and available, and keep supplier or workshop estimates separate from goods ready to hand over. Give a range only when it reflects completed pieces, and avoid promising a made-to-order sample will have an identical finish.
