A late 19th-century part compendium , by W & S JONES comprising a 1 inch three-draw brass telescope with mahogany outer body tube, a Martin-type monocular microscope with two objectives, a Wilson-type screw-barrel microscope with three objectives with extension tube to fit a dcioptic-ball (missing) , with makers trade label (damaged) in mahogany case 13½in. (34.3cm.) wide See illustration
A late 19th-century part compendium , by W & S JONES comprising a 1 inch three-draw brass telescope with mahogany outer body tube, a Martin-type monocular microscope with two objectives, a Wilson-type screw-barrel microscope with three objectives with extension tube to fit a dcioptic-ball (missing) , with makers trade label (damaged) in mahogany case 13½in. (34.3cm.) wide See illustration
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.jpg "Source: Christie's")
.jpg "Source: Christie's")
