Great Britain 1964 3d Botanical congress essay, SG655var.
A very fine essay depicting ferns, printed in bluish grey and black, perforated 15 x 14 on gummed unwatermarked paper, mounted on a Harrison & Sons presentation card. Typed on reverse "Design No.7b./4099".
A unique essay.
Provenance: ex Michael Goaman archive, the famous designer of classic postage stamps for 30 years with his wife.