Looks like a reasonable guess. There's a hint of that '50-51 Clubman "electric flamboyant blue," and the seat cluster lug looks right. Can't tell much else from those pics.

I've owned a '50 and a '51 Clubman (and that's the last year they were made). They only came in 22" frames, with 27" wheels in both of those years (I still have a '49 Clubman with EA1 wheels), only in blue. Here's my '51: