The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Post Office Underground Cable Maintenance. Beric Tempest. Telecom Technology Showcase. Ephemera Series No. 10
Post Office Underground Mail Train. London. GPC. Mail Rail. The Postal Museum. Stamp and Coin Mart
Post Office underground railway Mount Pleasant sorting office. London. No. 2 of a series of 6. House of Questa. Multi View
London. The Post Office Underground Railway at Mount Pleasant Sorting Office. A Post Office Picture Card. No. 2. of a Series of 6. The House of Questa. Multi View
The Post Office Underground Railway at Mount Pleasant Sorting Office. A Post Office Picture Card. No. 2. of a Series of 6. The House of Questa. Multi View
London. The Post Office Underground Railway at Mount Pleasant Sorting Office. A Post Office Picture Card. The House of Questa. Multi View
The Post Office underground railway at Mount Pleasant sorting office. London. The House of Questa. A Post Office picture card. Multi View