A portable transit instrument by Dollond of London. Circa 1775.

2 inch objective lens.

78 cm focal length.

With original fitted case with accessories. Case dimensions below.

For a similar instrument see The Science Museum, London. Object number 1939-390.

Height: 20.5 cm | 8 in
Width: 88 cm | 34. 5 in
Depth: 43 cm | 17 in