The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Crown. The Strangers Gallery. House of Commons. The Ministry of Works. 1951
Royal Gallery. The House of Lords. Raphael Tuck and Sons. Photogravure Postcard No. 2168
Middlesex. Osterley Park House. The Gallery. Completed in 1759. Attributed to Sir William Chambers. National Trust. Crown. 1983
Syon House. The Long Gallery. Country Life
10938. Press Gallery. House of Commons
The Commons Gallery. Misch and Cos Camera Graphs Series No. 41313
The Royal Gallery. House of Lords. C138. Walter Scott