Browse Items (3400 total)

cylindrical brass base with 3 holes through it.

Brass collimator with spring shutter on one end.

a hollow brass teardrop shaped globe, a cone joined to a hemisphere

Set of 24 brass slides with different sized apertures cut from them and painted black. In grooves in a wooden block.

A brass revolving stand with 2 turning parts both with scales 0- 360 degrees with divisions of 1 degree and labelled every 10.

Brass stand with adjustable section

Brass cylindrical stand on 3 feet

Brass cylindrical stand on 3 feet

Brass stand with engraving on the base. Similar to ABDNP200634a but without magnifier. Also has wooden plate round base.

Brass stand with "W. LADD, LONDON" and "Univ. Abdn. Nat. Phil." engraved on the base. Similar to ABDNP200634a but without magnifier.