Justin, Doug's post had the correct details; just visit their web site.
First page: "John Rigby & Co (Gunmakers) Ltd, London, England.
Repatriated to the UK after a 15-year absence, John Rigby & Co. (Gunmakers) Ltd invites you to visit its new premises in London. Now part of the Mauser/Blaser group and operating under the direction of Marc Newton and Patricia Pugh, the company is flourishing as it carries out the business of making, servicing and renovating fine rifles and guns. In addition, the showroom is home to the Rigby collection of vintage guns and memorabilia and 82 ledgers with entries dating to 1798."
Tim