Rulers in units of Centimeter, ell, fathom, foot, hands, inch, meter, millimeter, rod. Architect rules with inter- changeable scales. Circumference measuring devices Micrometers, Yardsticks, Ell rules, Thickness gauges.
Original 1930s lantern slides in original boxes VERY RARE. 3 boxes with two slides each and story leaflet....
J.T Graham. In this book was incorporated the history of weighing, the principles of weighing and a...
The rapid development of electronics and computerization in the mid 20th century, and the invention of...
Received the package today - beautiful! My grandparents had purchased the postcards when traveling...