Trammell HudsonSlide rule fans: have you ever seen one with two cursors and a second sliding rule? This odd sliderule illustration was on the cover of Astounding Science Fiction, May 1951 https://archive.org/details/Astounding_v47n03_1951-05_Sam_Hall/mode/2up
sasutina13a is-a sasutina13a@th An astrophysicist I knew had an old one with both the double slides and double cursors.
But otherwise I´ve only ever seen them in books or magazines.