Please see the most recent updates in the "Where did the .com name go?" thread. Posts number 16 and 17.
The known photos show a twin fin, but the text at aerofiles says there must also have been a single fin version.


Fire-flies that were brought to the capital by an airplane
In order to gladden the eyes of H.I.H. the Crown Prince, the children of farming villages in Kyushu district gathered nearly 20.000 fire-flies which were brought to the capital on May 31.
Our photo shows the fire-flies that were brought to the capital by a plane.
Hi Lefty!Thanks FF - the Ki-6 was a bit different anyway - 3-blade prop and fat tyres....
Here's a floater (amphibian) which may have been here before, but I can't find it - nice and grainy -
Sorry Dev One I'm Always late!Probably wrong, but it looks very much like a Bristol F2B, in prototype form with Falcon engine.
Keith
I thought it were solved
The right answer should be "The first Bulgarian Tourer B-BECA at Filton in April 1924"
Cheers gX