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History of Science Museum

Microscope Accessory Kit, by Powell & Lealand ?,

Inventory Number 11197


Subject
Microscopy
Item type
Object
Provenance
Possibly associated with RMS (found on shelf with other RMS objects - 01/08/2008)
Primary inscriptions
On high power prism: "Powell & Lealand / No. 15 / PATENT" On low power prism: "For Low Powers & Opaque Objects"
Inventory No
11197

Description

A hinged mahogany case with a key and lock mechanism and supports inside lined with green felt. The case contains assorted microscope accessories: a set of nine copper alloy objectives in copper alloy cans with screw lids, and one empty can; a set of five copper alloy eyepieces which would push into a body tube; a set of seven Lieberkühn, two of which are stored in copper alloy cans, four have caps, and one is not stored in a can or cap; two parabolic illuminators with black spots, stored in copper alloy cans. One of the spots is fixed, the other can be rotated using a screw; three live boxes on rectangular bases, and a spare circular live box lid; stage forceps with a cork end opposite the steel forceps; an aperture disc attached to a collar with four different sized apertures; a copper alloy can holding four coloured filters and seven metal disc filters; an objective with a small aperture disc fitted half way down the objective nose; a set of two copper alloy lenses with a threaded top; four copper alloy collars, three of which would be fitted by pushing into a body tube, the other is threaded; a set of two prisms, each in a small hinged leather-effect case with a swing clasp fastening; two analysing prisms, one in a cylindrical tube, the other in a nose-piece, with a spare prism in cork; a copper alloy collar with a grey filter attached; a circular dark well carrier; a copper alloy micrometer eyepiece on a copper alloy rectangular base with an adjusting dial on the side; and a lens in a copper alloy cylinder with two threaded sections.

(.1: 9x objectives & 10x cans; .2: 5x eyepieces; .3: 7x Lieberkühn; .4: 2x parabolic illuminators; .5: 3x live boxes & lid; .6: stage forceps; .7: aperture disc; .8: filters in box; .9: objective with aperture disc; .10: 2x small lenses; .11: 4x collars; .12: 2x prisms in cases; .13: 2x analysing prisms; .14: collar with grey filter; .15: dark well carrier; .16: micrometer eyepiece; .17: lens; .18: key; .19: Case)