Here is a unique kaleidoscope made from the actual Coney Island Mermaid glass 12 ounce beer bottle! It has a two mirror system using front surface mirror. The objects are all made by hand and are glas

 

Item to be paid in 3 days. Thanks for the looks, Jim Posted with the eBay Android app Posted with eBay Mobile Posted with eBay Mobile

 

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

 

This is a vintage Welch Allyn Opthalmoscope Otoscope set in a bakelite case. It comes with everything you see in the pictures. It has general wear to the set. It is being sold as is, untested. *****We

 

up for auction is this wonderful example of a vintage fractomator. has the original pencil/slide tool on its side. has the original cover. thanks for looking

 

You are bidding on a vintage Grier Bros. Pittsburgh PA Mining Lamp. The Lamp Measures 4 1/2" X 3". The lamp is in found condition and does have dents on the shield, bottom and back as shown in picture

 

Brunton compass like new, no scratches only used a few times.

 

Click to Enlarge Click to Enlarge Click to Enlarge Offered for auction is a vintage brown leather belt clip for a K + E slide rule case. It is 4 1/4" long and in very good, used condition. Payment is

 

VINTAGE 67/54 R. DARMSTAD, FABER CASTELL SLIDE RULE WITH ADDIATOR CALCULATOR This is a vintage Faber Castell slide rule 67/54 R. DARMSTAD, slide rule with ADDIATOR manual calculator. In good condition

 

Here is a lot of Mathematical devices, Calculators, a Faber Castell Slide Rule Made in germany and a Casio Electronic Calculator For Parts Only. The Slide RUle Is Functioning!