UV - It is indeed the Tipsy Trainer. This one is G-AFWT, no. 13.
The European connections are: Belgium (the designer) and Czechoslovakia (a Walter Mikron engine)
I'd failed to spot Sycamore's reference E.O.T as being Ernest Oscar Tips, the Belgian born designer and Sloinge, the museum in Sweden where one can be found, but a kindly PM from the Netherlands showed me the light.
I'm always impressed at how quickly these challenges fall.