Browse Items (3400 total)

a hand blown cylindrical glass laboratory jar with rimmed top and base.

Brass aperture selector and 2 brass rings. Aperture selector is basically a small cylinder with a circular disk, with 8 holes in it, offset on top.

3 anamorphic drawings on circular sheets of paper. Small hole in centre of sheets:
1) black and white drawing of 8-pointed star with radii
2) similar too above but on different paper
3) geometric design, black and white with grey and green shading

glass dome with brass neck piece and screw hole, possible for suspending an apparatus inside or attaching a tube.
Used as storage cover for friction wheels, ABDNP200255

A plastic, see-through bin with screw holes suggesting it fits underneath something. Still has small punch outs from paper data tape inside.

a hand blown cylindrical glass laboratory jar with rimmed top and base.

2 open circuit boards with components, soldered into place. One has a 4 digit display.

a circular wooden lead weighted base with turned wooden leg terminating in an apparatus plate. The stand is telescopic with adjustment by a wooden screw

Large fabric backed poster of the graphs for y=cos x and y= sin x with wooden batons. Rolled up. Appears to be hand drawn.

Printed circuit board with 28 nixie tubes, each tube for displaying one of the digits 0-9.