In my collection spreadsheet that is just the best example of everything I have, I have the following columns:
1)
Red Book2) Blue Book
3) Numismedia
4) Average
For individual higher end collections/sets, I have the following:
1) PCGS
2) NGC
3) Numismedia
4) Average
Each way of looking at it serves a different purpose, so it's nice to have all of that info there. My spreadsheets are extremely detailed, but they're the cumulative work of about 8 years of serious effort. I update the prices at the end of each year around December/January.
In part, it's so if something happens to me, my wife would have a better shot at getting the most out of everything.
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Posted 03/13/2025 6:34 pm
