Monday Motorcycle Mystery: Liner Motorcycle

Seen at the 1955 Tokyo show, this close copy of the Sunbeam S7 was shown in 250cc form by the company "Liner Motorcycles". Apparently one of the many postwar Japanese motorcycle startups,  there is not much information online. The company seems to have started up in the very early '50s but was gone by 1961.

More questions than answers here