Barlow Lens for 7-inch Refractor

PART OF:
Twin reflecting and refracting telescopes on observatory mounting, 1885
Made:
1885 in Dublin and York

Barlow lens for 7-inch refractor for the "Twin Equatorial" Telescope, 1885

Details

Category:
Astronomy
Object Number:
1936-231/21
Materials:
brass (copper, zinc alloy)
Measurements:
overall: 50 mm x 432 mm 50 mm, .799 kg
type:
lens and equipment
credit:
Bower, W.L.N.

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