AB Pyro 'Facit No.1' stove, stylistically seeming to be from c.1920 or possibly a little before. Very much just a copy of the ubiquitous Primus and Optimus No.1s of the period. The only design feature of any note would seem to be the rather elaborate pump tube cap! Other than that everything is very standard, and the feel and flexibility of the tank is unfortunately very similar to the thinner gauge offerings that other manufacturers had in their stables as 'budget' options. Not the quality of product that AB Pyro had been so well known for in previous years. The burner, a later date Primus unit, is not original. I had hoped to source an example with an original burner before considering posting, but so far without success.