Specialist Collectors Sale

Mid-19th century drum microscope with side mounted focusing screw and adjustable tube, signed - Jas. Lennie, Edinburgh, in a fitted mahogany case ...

Late 19th / early 20th century portable collapsible histological microscope. Patent no. 24960, with some accessories, in a fitted mahogany case

Military theodolite no. 36155, stamped - broad arrow B 5499 and engraved - Col. Coop Works, in a fitted leather case

Whirling Wind temperature gauze with Brannon thermometers, in a leatherette case

Vintage brass microscope with side mounted magnifier and single-sided mirror, two additional lens and pair tweezers, in a fitted mahogany case, to...

Early 20th century chemical balance by W. & J. George Ltd. Birmingham, with weights, in a glazed mahogany case with counterbalanced front sliding ...

Late 19th / early 20th century brass sextant, signed - Stebbing Buist Southampton, in a fitted mahogany case

Late 19th / early 20th century Troughton & Simms theodolite and separate mount, together with a mahogany veneered instrument box with leather carr...

1960s Freiberger micrometer sextant in a fitted case

Collection of fob compasses and others (qty)

Four pocket compasses in leather cases, together with one other compass and a pocket magnifying glass (6)

Three-draw telescope with leather cover and cloth covered storage tube, together with a cased monocular microscope and a Rolux Dice thermometer (3)

Vintage Muldivo calculating machine in original fitted case

16th century-style Continental bronze sundial ring, Latin inscription, together with an 18th century-style bronze pocket sundial of ring form, wit...

Collection of sundry scientific instruments - to include draftsman's tools, cased late 18th / early 19th century thermometer measures, metronome a...

Selection of Victorian and later practical drawing instruments - including compass, dividers, pair boxwood triangles and ruler - some by F. H. & C...

Seven pairs binoculars - including Zeiss, Harrods, Schulz, Beck Kassel and others