What type of aircraft?

[Dr Jekyll]

In the vicinity of White Waltham last week.

High wing, single radial engine, fixed tailwheel undercarriage. Much smaller than a Beaver or Lysander, looked like a scaled up Piper Cub except for the radial engine. I'm quite embarrassed not to know what it was.

[Dr Jekyll]

Think I've found it thanks, it looked like a Yak 12.
I think it was G-PFKD to be specific.