HHC2021 Bob's Calculator Challenge

[BruceH]

Some of those answers are open to challenge. :-)

Q2: The calc on the market for the shortest time was probably the HP-15C Limited Edition

Q3: I have a QuickCalc still in its packaging that has no model number on the calc and no model number on the packaging!

P.S. I also have a PrintCalc 100 which is a good thing because I certainly wouldn't have won :-)