A Collection of Circular Slide Rules and Calculators. See photos for what is included. All are in very good condition except the Range Computer which has 3 internal cracks in the back plastic disk. So

 

ALVIN 729JS Drafting Compass Set Missing medium size compass - replaced with another compassreplacement compass has attachment for mechanical pencil

 

You are bidding on a VINTAGE VIOLETTA MEDICAL MACHINE. Rare and hard to find. Machine is in very good shape with tubes and body in fairly good used condition. Case has some light wear on handle and su

 

Normal 0 VINTAGE ALCOHOL BURNER LENK MFG. CO. NEWTON, MA. Chrome-plated Brass. Very good used condition. Original wick. Wing screw filling plug unscrews for filling. Works fine. Probably originally us

 

just purcheased this morning at a estate sale, along with some other tools. first view all photos., for condition and too make sure whatever is there is what you want. what is in the pictures goes in

 

You are bidding on an AMAZING ANTIQUE PICTORIAL (issued in 1898) old 2 pc "ORE BUCKET, MINING" hanging medal which was issued for the 50 year "JUBILEE CELEBRATION" for a initial GOLD DISCOVERY (at sut

 

German vintage barometer with thermometer and hygrometer in wooden case.Working condition , wood scratches partially.

 

*Vintage* Leeds & Northup 1950s Potentiometer Nuclear Era Model R88 Product Description PLEASE READ CAREFULLY! Up for bid is this *Vintage* Leeds & Northup 1950s Potentiometer Nuclear Era Mode

 

sraucher store Vintage Pacific Transducer Corp. Los Angeles,CA Model 615 Thermograph. Not sure how it works but it seems complete with paper and key etc. PTC is still in business in Los Angeles,they s

 

BEAUTIFUL FULLY OPERATIONAL CONDITION, MARCHAND PARIS MADE MOTHER OF PEARL ALL AROUND IN PERFECT CONDITION