Museum of Pocket Calculating Devices

This webpage documents a Museum of Pocket Calculating Devices, featuring an extensive collection of vintage calculators and computing instruments from various manufacturers and eras. The site appears to be a comprehensive resource cataloging hundreds of calculator brands and models, including slide rules, abacuses, early electronic calculators, and scientific calculators from the 1970s onward, with particular emphasis on vintage and collectible devices from manufacturers like Casio, Texas Instruments, Hewlett-Packard, and Soviet-era brands.