permissible gas mask for ammonia. mine safety appliances co the mask is in good shape no dry cracks the spare canister still sealed

 

Lot of Vintage Drafting Engineering Drawing Scales Triangular Rulers Calculators etc Great Lot of Drafting Tools All are in Great Shape. Wide Variety of Makers, Years, Tools, Materials. Please include

 

Antique Microscope Camera Lucida. To fit tube/eyepiece size 27.2mm. See images for condition: Excellent. Optically and mechanically fine. This actually works incredibly well, compared to many others I

 

Up For Auction We Have A Vintage Mid Century Stellar brand German Made Nautical Ships Wheel Barometer. This Beautiful barometer has a mahogany wood finish, Porcelain Face, Brass casing, inner workings

 

Five drafting pens from the early 20th century. The one of the far left may be mid 20th century. The one on the far left and the one second from the right are marked KEUFFEL & ESSER. Second and th

 

Beautiful Stained Glass Kaleidoscope. Gently used and stored in a curio cabinet since purchase. Sticker reads Made in Mexico. Samples of views are attached. Posted with eBay Mobile

 

Offered here is a First Printing of the out-of-print book Miners' Candlestick Patents, by Wendell Wilson. Published in 1983 by the Mineralogical Record Incorporated, Tucson, Arizona. . Includes 81 pag

 

This Drafting Table is dated Nov 10th, 1872 from the WASHBURN MACHINE SHOP Institute of Industrial SCIENCE. 

 

This is a paperback book titled Slate in Pennsylvania by Charles Behre Jr. It is a topographic and geologic survey bulletin M 16 dated 1933. It measures 6 x 9". 400 pages. Includes many photos and ill

 

6 Plastic NORVASC Drug Rep Pens - Floatys Description If you are a Collector of pens, then you will Love This Group of 6 Plastic NORVASC Drug Rep Pens. This is a nice group of pens that will certainly