Photograph of a contraption consisting of a pair of wheels, letters around the edges, with their letters connected by fiber optic cables. The top wheel is visible, and is red and labelled "encryption". It is sitting on a base that allows the user to rotate the encoding device and select a letter, visible through a viewplate. When the letters is selected on the plate, an LED lights up a different letter on the encode wheel via the fiber optics. Currently the selected letter is "A" and the lit letter on the encoding wheel is "O".
I've been following along with @crunchlabs.bsky.social (site at www.crunchlabs.com) and I'm woefully behind, but did pick up this build out of order Because Cryptography! It's a cool #CrunchLabs build kit that lets you build & use a pretty snazzy gadget for cipher encryption. (1/32)