Folding Ensign Carbine Tropicale n°12
 Houghton-Butcher
 Metal body, brown Russian leather bellows
 Model number 12 Ensign – “tropical” carbine with brown bellows and varnished wood and brass body.
 "No. 12 ENSIGN CARBINE" plaque
 On the back: “Made in England by THE HOUGHTON BUTCHER MFG.CO.LTD London”.
 On the toilet seat: "ENSIGN CARBINE TROPICAL MODEL"
 On the kickstand and on the strap: "Carbine".
 Device constructed of bright bronze varnished metal, "Florentine" type.
 Houghton produced some very fine tropical folding knives, all characterized by an "oxidized copper" coating (Florentine bronze according to McKeown, therefore a brass with 85% copper and 15% zinc) and a Havana leather bellows.