Finally got through to Lebeau and they've responded with the gun specs as it was built in 1932.

Hello,

Thanks for your call and for your e.mail.
Regarding shotgun 42703, here are specifications :

Side by side shotgun with side locks special tir aux pigeons 12 ga barrel Sir Joseph Whitworts compressed steel chopper lumps from 76cm chambers 70mm with ejectors square body action 2 triggers English straight stock of 367mm with tear drops gold oval in stock with initials E.M.P. small engraving by Leukers made in 1932 for the house Verney-Carron in France.
Made in pair with number 42704 and its for that you can see n1 et 2 on barrel, action and fore end.
Choke for gun 42703 = and full weight of barrel 1k449 weight of gun 3k370
Choke for gun 42704 = and - weight of barrel 1k448 weight of gun 3k370

With our best regards


Anne-Marie Moermans Ramakers