Vintage Brass Microscope, marked 100x, no name---There is a patina/metal discoloration which I tried to picture. Used a magnet to test the metal; still not sure what metal is used to case the mirror.

 

The one on the right side is marked, “Stevens Kaleidoscope, Millions of Designs, Stevens Mfg. Co., St. Louis, MO”. It is 8 15/16 inches long. The outer diameter is 2 5/16 inches in the front and 2

 

Slide rule, in used condition. Leather case has some pencil marks on the inside, and initials carved on outside. If your initials are J.C. B. you're in luck. Slide rule needs a little cleaning.

 

~ PICKETT N3-T POWER LOG EXPONENTIAL SLIDE RULE ~ Offered here is an estate-found, vintage Pickett slide rule. The slide rule is in excellent condition and appears to have seen light use. There is a b

 

A handmade vintage human eye prosthetic Size: medium. Color: Brown Gray The picture show the item you get, but sometimes color and shape may look different from picture because your screen type, the c

 

Classic Keuffel & Esser Log Duplex DeciTrig slide rule. The latest patent dates from 1940, and Mr. Lundin was already a graduate student in Chicago by 1950, so the timeline for dating this is pret

 

VINTAGE PROSTHETIC HUMAN EYE #43 Click to Enlarge Click to Enlarge I am listing 60 of these vintage prosthetic eyes all on separate auctions this evening. Photo close ups show all the details. I will

 

COAL MINERS BELT w POUCHES, HAS A LEATHER PATCH ON THE BACK INSCRIBED "SHAMROCK COAL COMPANY" The belt opened straight is 40 inches end to end, I'm a size 32, and there is still plenty to spare.Why Co

 

Vintage Soviet Russian Binoculars BPC 10x50 TENTO original leather caseFor sale is BPC 10x50 Russian binoculars Tento' SpecificationsLens diameter [mm]50Magnification [x]10Angular field of view [deg]5

 

Up for auction is 1 Charles Bruning 18" alum. drafting machine scale. It is marked Vard Inc. Pat. 2192422. It is in good condition, has some scratches and engraved name on it. Also have a 6" Pickett a