My first HP-35 and a happy end

[Jeff O.]

Congratulations on your good fortune. The HP-35 is surely a thing of beauty and obviously very robustly designed.

(09-22-2014 08:47 PM)jebem Wrote:  This calculator was sealed from factory, never opened before, despite a lot of dirt in the keyboard area. So I decided to open it to do a good cleaning.
The electronics PCB is immaculate, though.

Did you carefully remove the back label with heat and patience, or just poke holes to get at the screws? Which version is it? (Some experts can probably tell by looking at the circuit board and other evidence in your pictures, but I cannot.)