Interesting find here, a very simply and unassuming construction but rarely found; a carbon steel and beech clam knife likely made on contract for the A J Jordan company. 

Andrew Jackson Jordan was an American from St Louis who set up a knife manufacturing business in Sheffield (the East India works) and imported knives to the USA made at the East India Works and on contract for A J Jordan by other Sheffield manufacturers, this is a knife made at the East India Works with double shear steel and 'seasoned Persian boxwood'