Previously unknown and not listed in the Archive until 2018, the Hynburn No.1 lathe appears to have had a centre height of around 4 inches and a capacity between centres of 18 inches, Backgeared and screwcutting, the lathe has the appearances of being manufactured during the early 1930s - though its "style" is rather more 1920s and not dissimilar to another lathes from that era by the American South Bend Company. However, although possibly American, it could just as well be English, or even of Continental origin.
Fitted with a wide bed with V and flat ways, the Hynburn had a comprehensive specification with a well-built heaedtock, V-belt drive to the spindle, tumble reverse, a strong-looking compound slide rest assembly and robust leadscrew hanger bearings - though the screw was of a rather coarse pitch.
If you have a Hynburn machine tool, the writer would be very interested indeed to hear about it.