The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Rhuddlan Castle. Post Office Picture Card Series. No. 20
Rhuddlan Castle. A Post Office Picture Card
Postbus Service 100. Reg No. NSB 492R. Serial No. 5750071. Scotland 100th Postbus Leaving Inveraray Castle. Post Office Picture Card
Powis Castle. A Post Office Picture Card Series
A Section of the City of Belfast Youth Orchestra at Castle Place Post Office. Post Office Picture Card. Series NIPB 1
