Roland, I have created a collection database to store and display knife information such as, photos, maker information, knife specifications and materials, date & from whom purchased, price paid, current value, registration numbers, perspective buyers, price sold and to whom sold, ROI for individual knives, total collection cost, total collection value, ROI for entire collection. This simple spreadsheet can prove to be a very valuable tool for managing your customs collection for you or your heirs especially in the event fire, theft or death.
I make a Microsoft Excel template of this spreadsheet available to collectors who attend my collecting seminars. Sound like with the quantity of knives you have it would be a lengthy process loading all your knife information into the template