17 scales 12" long. Cursor and center slide bar move smoothly. No writing on slide rule or case. Front Scale K, A [ B, ST, T, S, C ] D, DI Back Scale DF [ CF, CIF, CI, C ] D, DI, L

 

You are bidding on a used Focalin XR pen with a floating pill in the barrel. The barrel has a clear section within which is the floating opened capsule and a background of pill pellets. Please see the

 

SUPERDEALS949 Store STUNNING~VINTAGE~WOOD AND BRASS MAGNIFYING GLASS~NICE CLEAN COLLECTIBLE STUNNING~VINTAGEWOOD AND BRASS MAGNIFYING GLASSNICE CLEAN COLLECTIBLE WEIGHS 24 OUNCES 4 3/4 " DIAMETER GLAS

 

Three vintage nurses caps, 2 have the name of the previous owner written on them; 2 are 17" across front, 1 is 15" Paypal Accepted, All payments due with in 5 days of listing end.Items are shipped wit

 

Set of 2 brushes and 2 springs for repairing blasting machines. Posted with eBay Mobile

 

This is a small mercury recovery retort, designed to purify your mercury while separating it from your gold. Instructions for use.Work in an open well ventilated area with a breeze at your back when o

 

Please read carefully the following report. The figures are an integral part of this description. Offered for auction is an antique (mid 19th century) very nice small brass pocket single microscope wi

 

WORKSHOP RECEIPTS FOR THE USE OF MANUFACTURERS MECHANICS & SCIENTIFIC AMATEURS by ERNEST SPON 1885. FIRST SERIES. COMPLETE AND INTACT OF ALL ITS PAGES PLEASE NOTE: I also have the SECOND, THIRD, F

 

You are bidding on a vintage like new ALVIN 1150 ELITE DECILOG TRIG LOG LOG SLIDE RULE. Includes leather case, original box and instructions.

 

1952 POPULAR SCIENCE JULY HOW TO BUILD A PLASTIC PORCH WILBUR SHAW FLIES A CAR 242 Pages USED: 3 corners wear. Near new otherwise. ( Some photos listed: Delta wing fighters Convair XF92A; Jet giants â