This is a 500-ml borosilicate glass flask (round bottom flask or boiling flask) that has been sealed, pumped to high vacuum, baked out, and backfilled with xenon gas to a pressure of 90 torr. When exp

 

Standard First Aid PatchSize 2"In new condition

 

You are bidding on two pairs new old stock John Lennon type round frames Frames are marked M 1/10 12 kt GF frames are marked on temples and bridge. One is used and markedSC USA 1/10 11kt GF These are

 

This pair of antique binoculars I think date to around 1890/1900, they are made of brass and have nice patina with age as seen in the photos, the binoculars are a bit damaged, there are cracks in the

 

Up for auction is this vintage precision drawing drafting kit. All the pieces are in very good condition with only very minor wear. Pieces and the case are marked France. One of the pieces is marked D

 

Mixed lot set of dental tools,,These tools are mostly clean and shiny they have some scratches and a little ware to them but all are usable or collectible,what you see in the pictures is what you get,

 

10 ounce SILVER BAR ONTONAGON MICHIGAN MI mining calumet houghton copper mine Click to Enlarge Click to Enlarge Click to Enlarge Click to Enlarge priority mail 6.00...... Shipping and Handling charges

 

Vintage DIETZGEN Vector Type Log Slide Rule No B 1725 BRAND NEW IN BOX! Yes, folks, you read that right, this 1950s era Dietzgen slide rule is BRAND NEW. Comes in original box, as shown, and is still

 

Resorcinol is a white to yellowish solid having a density of 1.3 and a melting point of 110 degrees Celsius. Soluble in water and many organic solvents. It's uses include - resorcinol-formaldehyde res

 

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