This is one of the earliest models of E.T. Wright cold blast. It predates Edwin Wright’s 1900 patent for a locking mechanism for pin lift lanterns. This lantern was really when the similarities between E.T. Wright & Co. lanterns and C.T. Ham lanterns began. Although I can still see differences between Wright and Ham lanterns of this era too. I’ve still never been able to link the two companies together yet, unfortunately.
The tube corners on this lantern are referred to as ‘patch corners’ by collectors. Not many lanterns used these types of corners, the Royal Cold Blast as well as early C.T. Ham cold blasts did.