Additional Pictures 


Both versions of the Longines Symphonette Version 1 
calculators side by side.

This Longines Symphonette Version 1 calculators with the serial number 
D1000-20495 makes use of the creme colored Datamath housing. 

The printed circuit board (PCB) of the late Longines Symphonette 
calculator gives an expected manufacturing date of February 1973.


horizontal rule

If you have additions to the above article please email:

Joerg Woerner, March 6, 2004. No reprints without written permission.