The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
I. O. W. Osborne House. from the air. Ministry of Public Building and Works. Crown
Osborne House. From the Air. Ministry of Works. Crown
I. O. M. Osborne House. From the Air. Ministry of Works. Crown
I. O. W. Osborne House. From the Air. Ministry of Works. Crown
Osborne House. I. O. W. From the Air. Ministry of Works. Crown
10. Osborne House. I. O. W. From the air. Ministry of Public Building and Works. Crown
Osborne House. I. O. W. From the Air. Ministry of Public Building and Works. Crown