Wanted calculators !!!
I am always looking for Nixie tube calculators, special LED and VFD display calculators and calculators of the brands Hewlett Packard , Texas Instruments , Litronix and Elektronika. Also special (manual or LCD display calculators or very special slide rules) are wellcome to improve the quality of my calculator museum.
Don't hesitate to email me if you think you have something special. I also like to help others (if a can) to answer questions (in english, german, spanish or dutch).