Calculator Collecting Pages

This is a (partial) tour of my calculator collection.

I collect HP calculators primarily, but I can't resist an interesting
older example from any manufacturer. The HPs are in general not
for sale unless I have a duplicate, but most of the others are available
for sale or trade (for HP hardware!). When I trade or sell a calculator
I usually leave the photo here on display anyway.

Direct Link to the HP Swap Page!.