Vintage 1971 Buss-Condux Metric English...
$10.00
VTG 1974 US-Metric Converter Army National...
$14.99
Vintage 1977 Alcoa Metric Converter Slide...
$11.99
Vintage 1976 Barron's Metric Converter Slide Chart Rule
$9.78
US-Metric Converter Army National Guard...
$9.29
The Metric Converter Slide Ruler Conversion...
$6.99
Vintage 1970 Litton Louis Allis English/Metric...
$11.56
New Jersey National Guard US Metric Converter...
$10.76
Condec temperature pressure converter Potter...
$17.00
Vintage 1974 US-Metric Converter Indiana Army...
$13.45
