Alro 200R Very rare dutch circular slide rule ALRO 200R After 2 years I have started again to sell some of my slide rules and some other interesting things about calculating. I offer a very rare dutch

 

The Gerber is still in the wrapper and presumed new The Pickett is in a lovely creamy leather case and is in excellent condition Get your bids on for these pre computer geek tools.

 

This is a very good quality old pocket barometer, it has a double dial, one side has the barometer, the other dial also has a thermometer and compass which seams to be in working order, surely one of

 

Overall in good, used condition, this does show standard wear and age. This is from the late 18th to early nineteenth century. Please see pictures for size and condition details and message me with an

 

Up for auction is this vintage circa 1945 box for Ipana Tooth Paste. Condition is excellent. See photos to judge if this is worth your bid. When this listing ends I will be out of town and will not re

 

This is a fantastic piece of surveying history and is very very rare!!! This original factory issued piece is the directions for use or instruction manual for the Wild DM1 New Precision Telemeter. Sid

 

Antique LeMaire Paris Mother Of Pearl Opera Glasses Made In France This is a beautiful antique Mother of Pearl opera glasses made in France. Marked on the eye pieces Le Maire Paris and some of the let

 

Corki Weeks Brass Swirl KALEIDOSCOPE Very nice brass kaleidoscope made by California artist Corki Weeks in the 1980s i believe. It has very nice brass exterior case and a beautiful continually changin

 

With brass ends and Paper A'Cuve wrapped. Made by Van Cort Instruments Ltd. in the 1980's. In very good condition and original box/packaging.

 

Up for auction is this vintage Dietzgen Topographic ( Abney ) Level. This is used to measure percentage of grade elevation by sighting a target at the same level from the surface as the viewer's eye.