Faber-Castell 310/52 Log-Log Projection Slide Rule. Projection Slide Rules were typically used for classroom instruction, in conjunction with an overhead projector (not included). The scales and cursor are fully functional and move smoothly. The scales correspond to those of the Faber Castell model 52/82. Also included are an extra set of practice scales and cursor, for demonstrating how to read the scales, and instructions for using the projection rule itself, and regular instructions for the model 52/82.
The rule is in nearly new condition. The outside of the box has some smudges, and one edge of the outside of the box shows some sun bleaching. The projection slide rule measures about 14¾" x 7½" x ½ (375 mm x 190 mm x 12 mm). If you always wanted one of those 6-foot classroom demonstration slide rules, but have lacked the space (or have an unsympathetic "significant other"), then this could be just the ticket. Please ask if there are any questions.
The item "Faber Castell 310/52 Log-Log Projection Slide Rule. Nearly New" is in sale since Thursday, November 28, 2019. This item is in the category "Collectibles\Science & Medicine (1930-Now)\Engineering\Slide Rules".
The seller is "slide_rule_alley" and is located in Baton Rouge, Louisiana. This item can be shipped worldwide.