A WWII Anti-Aircraft Double Telescope, by Ross of London, dated 1940.

In a period transit case by Cooke, Troughton & Simms, of York.

Marked: TELESCOPE IDENTIFICATION AA MARK III - ROSS LONDON - 1940 - broadarrow - No 2525

With tripod.

Width: 80 cm.

60 mm objective lenses.

For a similar mark III model see: The History of Science Museum, Oxford. (Inventory number: 86327).