THIS PAIR OF BIFOCAL LENSES ARE LIKE THAT DESIGNED BY BENJAMIN FRANKLIN.. THESE WERE MADE BY CUTTING TWO LENSES IN HALF AND FITTING THEM TOGETHER IN THE SAME FRAME.. SO IF YOU LOOK CLOSELY, YOU WILL S

 

NIce pair of Lemaire Paris mother of pearl opera glasses with handle. Handle is removable. I looked thru the lenses and they have a clear picture. No chips or cracks on the lense on the mother of pear

 

An original and early travel compass in Mahogany case, about 1820 . Fine and detailed dial, working condition with needle lock when case closes. No makers marks visible. Some exterior damage / split t

 

This is a very nicely reproduced spherical audion. It is very faithful to the original with primitive looking internal elements. The tube has a good filament, and the socket shown is included. I gladl

 

Stone- Mortar & PestleColors as well as Condition are Excellent"Nearly New Condition"Very heavy ( just under 4 lbs )Sizes - Mortar 4 3/4 " diameter, Pestle 6" long & 1 3/4" widest widthI am Re

 

This is a very old English Saw made by " P.S. STUBS " of the Lancashire area of England. From all my reading & research these were made in the 18th century....from about 1750 to the 1880's. Some p

 

Interesting microphotograph by A.R., some slight deterioration, left hand side of image

 

Normal 0 false false false EN-US JA X-NONE A 10 X S PLAN-APOCHROMAT OLYMPUS OBJECTIVE. PRISTINE! Like new! Plan Apochromat, D.I.N. standard (160mm tube length). Its impressive 0.40 NA affords the ulti

 

<>VINTAGE MINERS APPROVED GOLD SCALE<>This brass miners gold scale is in used condition..The tin box is dented and the paint is worn and looks like it has been carried and used quite a lot

 

Fine deep cell fluid mount by Topping, dating from mid 19th.C, diamond engraved. Appears to be in good condition, still containing some original fluid. Section of human lung