For purposes of getting insurance for your collection, it's pretty much your call. You put a value on it like $8000 and they quote a premium. I've never made a claim but I would assume you'd have to get a quote from a reputable source at the time of loss or buy a replacement(receipt) for a retired piece. A current piece would obviously be no problem. The latest values of any record of prices that I'm aware of are Art's year old spreadsheet at http://www.lighthousekeepers.com/cgi-bin...453736&Session= .
- Bob