A collector note is paper with a price that has nothing to do with the face value printed on it. Folded, bleached, or in a clear PVC sleeve, it is a different note. In the overview Security for collectors paper money sits with what light and acid finish slowly and a burglary finishes fast.

What breaks without a thief

Light bleaches. Acid from cheap albums eats. PVC turns sticky. You store flat, in the dark, in sleeves made for paper money, not in the brochure sleeve from the stationery shop. A note you crease to put in a wallet is no longer a collector note.

When someone comes

An album on the shelf is under an arm in a minute. In the radar something like this is rarely called a banknote. It is called cash, and cash is the most common item of all. Your list still has to say, note by note, what was not money fit for circulation, or else the policy replaces the face value and not the collector price.

The protection

Valuable notes go into the fire-resistant document cabinet or into the certified safe, depending on what the insurer requires for paper and for the sum. Everyday cash and the collection do not sit in the same envelope. A copy of the rarest notes, front and back, sits digitally outside the home.

The folder

Pick number or catalogue number, condition, purchase receipt. One sentence on which cancellation or which stamp is on it. Without this line you argue over a piece of paper.