This item is a Frieze division of Bendix Hygro - Thermograph model 594. The brass plate states "Hygro - Thermograph recording Relative Humidity Air Temperature model 594 part No. AW-500054 Frieze Inst

 

If you collect drawing instruments then this may interest you. The item is a small set of vintage instruments manufactured in brass with some steel on the points. They come in a polished wooden box me

 

Awesome vintage 'Pixie' kaleidoscope De Luxe Model with snap in heads "to create billions of beautiful designs (one is broken however you could probably put some of you own beads in there and use it)

 

Vintage Sears 60 Prepared Microscope Slides Blood Bacteria Sea Life Click Photos to Enlarge Description Up for auction are 60 Prepared Slides in the original box sold by Sears Roebuck and Co. Professi

 

One microscope slide with 21 selected marine fossil diatoms from a deposit near Redondo Beach California USA. Mounted in Zrax, a special high refractive index diatom mountant. Will ship worldwide; Fla

 

Thiourea is also known as thiocarbamide. White, lustrous crystals with a density of 1.4 and a melting point of 180 degrees Celsius. Soluble in cold water. It's uses include - photography (removing sta

 

These 5 slides are all thin sections of rock and best viewed under polarised light. The most striking image is the only slide without any information ,but looks to be a form of granite. The next is Fe

 

this is a use unit it dose have some dust on it it is sold as seen in the pics and will come the the original case both item do have some wear as seen in the pic s

 

*Vintage* Leeds & Northup 1950s Potentiometer Nuclear Era Model R88 Product Description PLEASE READ CAREFULLY! Up for bid is this *Vintage* Leeds & Northup 1950s Potentiometer Nuclear Era Mode

 

VINTAGE FREDERICK POST VERSALOG 1460 HEMMI BAMBOO SLIDE RULE--VERY NICE SHAPE WITH ORIGINAL LEATHER CASE MARKED POST VESALOG SOME RUBS ON CASE--TWO SMALL INK MARKS ON RULE Our POLICY WE WOULD APPRECIA