This handsome brass barometer is wrapped in a brass snake and sits on a marble base. The face is porcelain with elaborate lettering. The base measures 7 3/4" wide, 2 1/2" wide and 5/8" high - unfortun

 

This kaleidoscope is "Rainbow" by Randy and Shelley Knapp. This scope was a part of the Knapp's personal collection and has recently been completely refurbished by Randy and Shelley. This scope has a

 

 

Early 20th century magnifying glass with its own 3 legged stand - probably for carrying in the field for map reading or the examination of specimens perhaps. The glass screws up and down in its housin

 

mwrmwebb Store Slide rule in very good condition( needs cleaning). Case in fair condition with both ends taped

 

Antique Lemaire Paris France Mother of Pearl Opera Glasses in Original Case. A great pair of opera glasses/binoculars that feature a nice extra touch of mother of pearl on the extension also. Marked o

 

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

 

WOW, I DON'T KNOW WHO THESE ARE MADE BY BUT THEY ARE COOL LOOKING. THICK AND THE COLORING OF THE TORTOISE SHELL PATTERN IS VERY NICE!! THE FRONT AND SIDE FRONT EDGES HAVE AN ELONGATED TRAPEZOID THAT L

 

Brand new in the box

 

OFFERED FOR BID IN THIS AUCTION IS A NICE OLD POST 1441 SLIDE RULE MADE BY FREDERICK POST CO. 1441 HEMMI JAPAN THIS SLIDE RULE IS IN EXCELLENT CONDITION, IT DOES'NT LOOK LIKE IT HAS BEEN USED MUCH - I