The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Jorvik Viking Centre. Viking Craftsmen. Dennis. D. Unwin
Jorvik Viking Centre. Viking Craftsmen. York Archaeological Trust. D. Unwin. Dennis
Jorvik Viking Centre. Viking Craftsmen. E. T. W. Dennis. D. Unwin
Viking Craftsmen. Jorvik Viking Centre. E. T. W. Dennis. D. Unwin