Rotring Rapidograph technical drawing pen, piston filler, with points 0.3mm, 0.5mm, 0.6mm, and 1.0mm. I bought this when they were fashionable for writing teeny-tiny notes in the margins of books and

 

20 Antique and Vintage SLIDE RULES 8 K&E, 3 Dietzen, 3 Pickett, 1 Crei, 1 Post, 1 Charvoz-Roos, 1 Dumont,1 Acumath and one US Government. See photos. All are in excellent condition for their ages,

 

approx 4" x 3" box and cards 2 cards are missing -- box shows age/wear - these are the actual items you will receive laminated Comparative Study Cards Anatomy - Cat Frog Necturus Shark listed on the b

 

VINTAGE VME NITRO BLASTING MACHINE I CAN NOT TEST THIS , IT PROBABLY NEEDS NEW BATTERIES , CHECK OUT MY OTHER BLASTING MACHINES THIS WEEK Please ask any questions prior to bidding. I will combine ship

 

This is a 1 year supply of Barograph Charts At least I think they are, anyway. I don't know anything about them, except that they came from my grandfather's estate and he had a bunch of instruments th

 

Look new, very nice shape.

 

JOY mining sticker - getting hard to find!Shipping - 0.90c within Australia, $3.00 to United States

 

Vintage Gerber Scientific Instrument Company model # GA-103 No. 500 Gerber Graphanalogue GraphAnalogue which sold for $150.00 in 1963Great vintage condition with only one crack in the plexiglass slide

 

Vintage POST Hemmi 1441 Pocket Slide Rule With Magnifier Description; GOOD CONDITION This small (five-inch) one-sided slide rule is bamboo covered with white celluloid, with a clear celluloid and meta

 

A very old Reynolds & Branson Ltd. student or field microscope in it's original box. A charming brass mounted student's microscope with black painted metal stand, appears to be complete, optics lo