Charvoz-Roos No. SR-111 Trig-O-Log Trigonometry Slide Rule w/ Case Vintage For Sale

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Charvoz-Roos No. SR-111 Trig-O-Log Trigonometry Slide Rule w/ Case Vintage:
$34.99

Charvoz-Roos No. SR-111 Trig-O-Log Trigonometry Slide Rule w/ Case Vintage

Charvoz-Roos No. SR-111 Trig-O-Log Trigonometry Slide Rule w/ Case Vintage

$34.99

Charvoz-Roos No. SR-111 Trig-O-Log Trigonometry Slide Rule w/ Case Vintage Exc

$32.95

Vintage Charvoz-Roos No. SR-111 Trig-O-Log Trigonometry Slide Rule w/ Case A5

$17.09

VINTAGE Charvoz-Roos Side Rule No. SR-105 With Case Made in USA Drafting Tool

$9.99

Vintage Charvoz-Roos No. SR-111 Trig-O-Log Trigonometry Slide Rule w/ Case

$12.99

Vintage Pocket SLIDE RULE: CHARVOZ-ROOS no 101D in sleeve w split side #2

$33.29

Vintage Pocket SLIDE RULE: CHARVOZ-ROOS no 101D in sleeve, made in USA

$33.29

vintage SLIDE RULE: CHARVOZ-ROOS no SR-111 in worn sleeve, rule needs cleaning

$33.29