I know lots of old collectors I buy from regularly. At 63 I use database to track my collection. Value paid and date acquired are some of the data included. Airguns are my focus lately but I have collected all sorts weapons my enitre life.

I assume an auction house will use my database to list example: I recently obtained a [1 of 20] of the first HW70 produced. It is serialized RNB #1, as it was presented to Dr Beeman by HW. No tinkering required with that bit of RB HW kit.

Routinely, any Hy-score [HS] airgun will receive countless hours of restoration work before being displayed. Just bought a FWB65 w/o grips and a section of the backstraps' frame ground away. Fixing high quality vintage airgun is one of my greatest joys and sometimes greatest frustration too.