Hello all,

I have come across this board as I research my new purchase.

I've been wanting a 28 gauge and recently found a Cogswell & Harrison double with ejectors. It has double triggers and came in a locking leather breakdown case. Both the right and left side are marked COGSWELL & HARRISON LTD with a little scroll work.

On the strap on top of barrels, is marked COGSWELL & HARRISON LTD 165 PICCADILLY LONDON

On the bottom of the barrels, near lockup are the following marks:

NITRO PROOF 5/8
BP BV NP
29
A symbol that appears to be that of a crown
A symbol that appears to be a diamond, within which are 3 other markings- Can determine the figure at 6 o'clock = C; The figure at 3 o'clock = 8

Am unable to make out the marking at 9 o'clock

On the underside of the gun, on the triger guard is marked 18308

Based on websites with items for sale, appears gun is made after 1881 and likely before 1906, but that's all I've been able to determine.

Unfortunately, appears the rear stock was cut and section added (maybe to lengthen???) so it's not all original.

I'm going to send a note to Cogswell information and try to obtain original certificate of ownership information. Any guesses as to how to determine model? Bluebook doesn't list 28 gauge in many of the models, so that isn't too useful.

Thanks for the help.