Most Treasured HP Collectible

[Roland57]

Dear Dave,

My first idea was to metion my 9100A and 9100B calculators, the B with 9120 printer. All of them are optically in very good condition and are fully working. I love these masterpieces.
But then I decided to mention my hp67, serial No 1701..., bought very early in 1977. This calculator was my companion during all the time at university (I just started to study physics), it helped me to get my MSci and my PhD, and to start a good carreer in a big glass-making company. I used it all the time.
Meanwhile it got a replacement ACT-chip from panamatic and it is still my favorite day-to-day calculator. It is in good cosmetical condition, only the printing at the bottom of the keyboard got wiped-away a little bit.

Roland