With leyden jars. Rest Will follow

 

Here we have an antique engineering/maritime graphometer, a rare tool used to calculate straight points on both land and sea. This piece dates from ca. 1780-1820, is constructed of brass and multiple

 

This great barn find is in excellent condition. Wood handle is long gone. Measures 18'' x 3 3/8'' x 1''.

 

I am not quite sure what I have here so I will just go by the small metal tags. One says Patterson X-Ray Screens and another one is something of a warning about weight on strap and so on. This is real

 

Ladies and Gentlemen, we are pleased to offer this week, a rare vintage medical ophthalmic lenses device tool: 0,5; 1; 2; 3; 4; 5; 6; 7; 8; 9; 10; 11; 12; 13; 14; 15; 16; 17 and 18. Marked 'Dioptra' a

 

UP FOR AUCTION HERE: ANTIQUE EARLY 1900's MA-LE-NA PILLS UNOPENED. THIS ITEM IS FOR COLLECTING PURPOSES ONLY. NOT FOR CONSUMPTION. ANYONE THAT DECIDES TO CONSUME THIS ITEM DOES SO AT THEIR OWN DISCRET

 

Cagniard de la Tour's Siren Delightfully named demonstration siren, this one by the British company Philip Harris. The siren is made from polished brass and is mounted on a turned wood plinth. It stan

 

This is a Fareach seal embosser from the "Mancha Storage Battery Locomotive Co." of Illinois which made mining equipment in the early 20th century. It has a 1923 patent date. It measures 8 inches high

 

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

 

THANK YOU FOR VISITING OUR AUCTION!!for your consideration yet another FANTASTIC OFFER:This vintage 12" long Keuffel & Esser Triangular Paragon Scale Ruler # 1621P comes in the original box. It is