Duckie Ampersand

Detail of a large 2ft diameter volvelle
Detail of a volvelle (paper computer) from 1967 unearthed from our garage

I’m still piecing together exactly what this ridiculously large and complicated volvelle is for — engineering, aeronautics, or astronomy maybe? But at nearly 2 ft in diameter and double-sided, it’s jam packed with information. So much so that I nearly missed this adorable little duckie of an ampersand hiding in plain sight! You can find a few more photos on Flickr of this side and the reverse.