Hi
one11,
I think it's the Gnosspelius Gull manufactured by Short Bros for the 1923 Light Plane trials (not sure whether the name Gull was officially used as it seems to be just referred to as "Gnosspelius Light Plane" in the article below).
major gnosspelius | gnosspelius light | light plane | 1923 | 0292 | Flight Archive
If correct, Open House Please as I'm currently unable to post.