Sir,

Can you help me? I have recently restored an old engine which has been in my possession for about fifty years. There are no markings of any kind on it, other than the number 139 which is stamped on several places, including the flywheel keys!

I have always understood that the engine came from a three-wheeled cycle-car dated about 1905, but the make is unknown. If you could find room in your magazine to publish the enclosed photograph, perhaps one of your readers could help me identify it.

J. Trethewey – Roche.

[Could it be from a rather later AC Sociable?—Ed.)