Refracting telescope, single draw telescope with dark mahogany tube and brass draw tube inscribed 'Petrus Dollond, Ann. Dom. 1765, Londinium'

1 1/2" aperture 3-draw hand-held refracting telescope in brass, with wooden barrel, with doublet objective and 2-component eyepiece and erecting assemblies, signed by Peter Hill of Edinburgh, c. 1820

1 1/2" aperture 3-draw hand-held refracting telescope in brass with objective rey shade and wooden barrel, with doublet objective and 2-component eyepiece, signed by Zenoni and Butti of Edinburgh, 1823

Refracting telescope in brass, 1 3/4" aperture 2-draw hand-held, with tapered leather-covered barrel, probably by George Lowdon of Dundee, c. 1850

2" aperture single-draw hand-held refracting telescope in brass with leather-covered barrel, signed by Lennie of Edinburgh, 1931, used at Point of Ayre Lighthouse, Isle of Man

2" aperture single-draw hand-held refracting telescope in brass with objective ray shade, signed by Lennie of Edinburgh, 1942, used at Vaternish Fog Signal, Isle of Skye

3 1/4" aperture 3-draw mounted refracting telescope in brass, with doublet objective, 2-component eyepiece and erecting assemblies, and tripod, signed by George Lowdon of Dundee, c. 1890

Refracting telescope in brass, three-draw and hand-held with a wood body tube, signed 'Frith, London', 19th century

Refracting telescope, three-draw and hand-held with a wood body tube, signed 'Proctor Beilby & Co, London', 19th century

Single draw hand held refracting telescope of brass with leather lined outer tube and objective ray shade, engraved 'Skerryvore Lighthouse', by Adie and Wedderburn, Edinburgh, c. 1890

Single draw 2 inch refracting telescope, in original canvas bag, made of brass with mahogany tube, badly cracked, no stand, by Gilbert & Company, London, c. 1800

A compact refracting telescope, in fitted green velvet lined mahogany case, tube made of brass, with screw focusing, two rack and pinion and a brass tripod stand, by Jesse Ramsden, London, c. 1760s

2 3/4 inch refracting telescope, German silver with mahogany tube, with nickel-plated tripod stand and mahogany and velvet box, by Smith and Ramage, Aberdeen, c. 1860

2 3/4 inch refracting 3 draw brass and mahogany telescope on brass tripod base with ball and socket stand and mahogany base, by E. Lorieux, Paris, c. 1840

3 inch brass refracting telescope on altazimuth mount with brass finder, mahogany tripod, original mahogany case with brass fittings, a brass eyepiece tube and two brass and glass eyepieces, by Dollond, London, c. 1880

5 inch refracting telescope, made of brass, with brass finder telescope mounted between brass trunions, on a rotating table, with mahogany and brass tripod with iron fittings painted black, by Troughton & Simms, London, c. 1880