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

 

This is a Plastic Scribing Instrument Set for the Corps of Engineers US Army from about 1945-52.It is made by the well know instrument maker of:Theo,Alteneder&Sons who made all kinds of drafting i

 

1-In good condition with clean lenses a microscope Objective marked on the Body C Baker London 3 inch.In a brass case that is not its original but marked W Johnson 1/10 in 188 Totenham ct rd. Part of

 

2 Small Vintage Medicine Tins Bayer Aspirin & Excedrin The Bayer tin once held 12 tablets, 5 grs. each, and once sold for 15 cents. It is in near mint condition. The little Excedrin Extra Strength

 

My Father bought this few years ago as a back up Compass to use in his Surveying business. He felt it was too big to carry so it pretty much stayed in the office.Do not know anything more about it. Se

 

Protractor Drafting Drawing Set Germany Compass Protractor Full by Fredrick Post This is a very nice protractor set Made In Germany. Shipping is $5

 

Vintage Pickett & Eckel Trig Slide Rule Model N1010-ES 12" Excellent condition. Copyright 1959. Comes in its original Picket case. Thanks for Looking!!!

 

Vintage Brass Mortar and Pestle Honoring Pharmacy Fraternities - Has 6 fraternities and their emblems from 1879 to 1921 Stands 2 3/" - Pestle is marks SCHERING Please, scroll down as there may be addi

 

This is an original and old Du Pont Blasting Cap Tin Box made of wood. No tins included. No cover included. Originally held 1000 No. 6 Blasting Cap Tins. The box is about 11" long and 7" wide. Perfect

 

Awesome vintage 'Pixie' kaleidoscope De Luxe Model with snap in heads "to create billions of beautiful designs (one is broken however you could probably put some of you own beads in there and use it)