Trulock & Harriss Vena Contracta

Horatio Phillips patent 'Vena contracta' - a collector's item rarely found in tact. The patent is for 12-bore chambers narrowing to 20-bore tubes from 6" in front of the chambers to the muzzle. Designed to fire normal 12-bore cartridges. This example is a sound but plain Webley boxlock non-ejector.