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'day and night' achromatic telescope (Meniscus lens) two eyepieces (one with sunfilter), brass dust cap, mahogany tube, on table tripod stand, made by John Gilbert, Tower Hill, London", 2-inch object lens, late 18th century
'day and night' achromatic telescope (Meniscus lens) two eyepieces (one with sunfilter), brass dust cap, mahogany tube, on table tripod stand, made by John Gilbert, Tower Hill, London", 2-inch object lens, late 18th century
'day and night' achromatic telescope (Meniscus lens) two eyepieces (one with sunfilter), brass dust cap, mahogany tube, on table tripod stand, made by John Gilbert, Tower Hill, London", 2-inch object lens, late 18th century
