This engine is not a Wotizit - it’s a Whenwuzzit, Wherewuzzit and Whodunnit! It showed up on eBay in March 2022, subsequently ending up in my posession. There was no doubt at all about what it was - the engine was clearly identified on the case in two locations as a GLOGO unit, a name completely unfamiliar to me. It proved to have a nominal displacement of 0.45 cuin. (7.37 cc).

A second and probably earlier example subsequently came my way courtesy of my English correspondent Alan Strutt. It seems that the engine’s constructor was sufficiently serious about the project to undertake its development through the creation of at least one test prototype before bringing it to the point where he was sufficiently satisfied to attach a name to it. Both examples are extremely well made and run very well.

The fact that the engines both use BA threaded fasteners throughout strongly suggests a British origin. Its design features are strongly indicative of a date around 1949-1950. The unresolved puzzles are - who made it, where was it made and how many were made?

If any reader has any knowledge of the antecedents of these engines, please get in touch!!