Along the way, I found an old $100 US Savings Bond issued in 1992 when I still worked for Blue Shield of California. That cost $50 at the time it was issued, is currently worth $129, and continues to accrue about 5.33% interest until 2022. Nice to find that. It goes into the fire safe.
Among the odd things that turned up: a copy of the installation disks for Macintosh System 7, and a copy of Microsoft Access Version 1.0.