Right then.......away from beer for just a moment.

Cogswell & Harrison....no luck.
Have heard back from Cogswell & Harrison and they have no records for rifles made by other makers and then marked/retailed by Cogswell & Harrison.
They say that all their rifles were 5 digit serial numbers while this one is 4 digit.

By the "Cogswell & Harrison, Ltd." barrel stamp it would indicate procured and stamped by them on or after 1932.

Unknown so far if this would be a Vickers-Armstrongs made rifle or if it came from the trade; have found no other markings, save proof marks, on the rifle.

- Mike