The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
10. Carisbrooke Castle. Keep Steps. H. M. Office of Works. Rembrandt Intaglio Printing
10. Carisbrooke Castle. The Keep Steps. H. M. Office of Works. John Swain
The Keep Steps. Carisbrooke Castle. O of W. T. Piper
The Keep Steps. Carisbrooke Castle. I. of W. T. Piper
The Keep Steps. Carisbrooke Castle. I. of W. T. Pipper