This slide rule is new in the box (NIB). The dash 'T' indicates that this slide rule is white aluminum. Complete with the original display box, black leather case with D-ring and belt loop, and manual. The box does show a little shelf wear. The manual was folded to fit into the box. As a result, there is a crease down the middle.

Scales: +0.1 LL2, -0.1 LL2, DF [ CF, CIF, L, CI, C ] D, +1.0 LL3, -1.0 LL3 //
+0.01 LL1, -0.01 LL1, A [ B, T, ST, S, C ] D, DI, K
The manual has a 1953 copyright date. The chapters:

1. Slide Rule Operation
2. Use of Certain Special Scales
3. Elementary Vector Methods
4. Use of Log Log Scales
5. Problems and Answers

This slide rule was included with the course from the Cleveland Institute of Electronics. It made of aluminum and painted white. (I have never seen a yellow version.)
Very good condition. Only one minor scratch on the right end of the front side.
The scales have both black and red lettering.
Scales: (Lr) H, (Fx) 2 pi, A [ B, T, S, CI, C ] D, L, Ln
The back side has electronic formulas, instructions, decimal point locator, and decimal conversion table.
The lettering for CEI is partially rubbed off the case.

Condition: C1. Item number: S-1493. Price: $45
Fixed shipping cost within continental United States: $8.00
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