Variable power telescope

Made:
1919 in Dublin
maker:
Sir Howard Grubb and Sons Limited
Variable power telescope, No.1, Mk 1, serial no

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Variable power telescope, No.1, Mk 1, serial no
Science Museum Group
© The Board of Trustees of the Science Museum

Variable power telescope, No.1, Mk 1, serial no.257, by Sir Howard Grubb & Sons Ltd., Dublin, 1919. signed 'Grubb, Dublin, 1919', diameter of tube 2 3/8 inches, objective 25 mm diameter, diaphragm cap at eyepiece end [telescope sectioned in 1958], lacks cap at object lens end.

Details

Category:
Optics
Object Number:
1922-38
Materials:
metal, brass (copper, zinc alloy), solder and glass
Measurements:
overall: x 777 mm x , 60 mm, 3.355kg
type:
telescope - refracting
credit:
Miscellaneous Disposals Syndicate