HP-65 40th anniversary edition

[Michael de Estrada]

(01-16-2014 09:49 PM)Massimo Gnerucci Wrote:  

(01-16-2014 09:08 PM)Michael de Estrada Wrote:  Notice that the 1333A on your S/N label is printed in a different font than the sequence number. BTW, the S/N on my HP 65 is also 1333S....

I have a 1333A0, a 1333S0 and a 1604S0

I also have a 1333A0xxxx and a version 2 with the S/N label 1603A0xxxx located outside the calculator and between the two lower feet. So, we have almost identical date code prefixes.