Quick Change Precision Aluminum Pantograph Model 1290 ~ made with nice heavy beams and quality For enlarging, reducing, or reproducing. in its original box with instruction sheet. I do not know how to

 

A Collection of Circular Slide Rules and Calculators. See photos for what is included. All are in very good condition except the Range Computer which has 3 internal cracks in the back plastic disk. So

 

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A collection of old apothecary, chemists weights, ranging from 4 DRACHMS, 2, 1, 1/2, 2 SCRUPLES, 1, 1/2, and thin brass grains, some with bent corners, mostly stamped ER, one stamped GR, in uncleaned

 

This listing is for (1)31" Sluice BoxMeasures 31"x 7"x 2 1/2" LxWxH14g AluminumFlare and riffles are slotted for height adjustment to pin down id mattingRibbed miners CarpetAluminum expanded metalStai

 

MICROSCOPE SLIDE. B. DARNTON. FORAMINIFERA. UNUSUAL LABELS. A superb slide of FORAMINIFERA from Brian Darnton – prepared in his usual careful manner and Dry Mounted on a photographic grid of 25 squa

 

Vintage DAVOL Little Bo Peep Childrens Hot Water Bottle Enema Bag. Very unusual small bag, I have never seen this design before. Measures about 10" x 4 1/2". Outer surface shows some staining which ma

 

You are bidding on an 8 1/2" x 11" color photo of Peabody Coal Company,s 8900 Marion dragline at their Hawthorn Coal Mine near Linton, Indiana coal mine mining.$1.75 USPS first class shipping, US only

 

Up for auction is a lot of used drafting fountain pens and some nibs. I beleive these were used for drafting, some of the nibs look used, some unused. Some of the markings I can see on the nibs are "E

 

VINTAGE PINCE NEZ Click to Enlarge Click to Enlarge Click to Enlarge Description: This is a pair of old pince nez spectacles, with rimless lenses, and spring nose clips. They are in a velvet lined har