The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
General Post Office. Calcutta. B. Hopkins
General Post Office. Calcutta. 1920
The General Post Office. Calcutta. B. Hopkins
Calcutta. General Post Office. No 1
General Post Office. Calcutta
General Post Office. Calcutta. Thacker Spink and Co
General Post Office. Calcutta. Clifton. Bombay
Calcutta. General Post Office. B. and L. T. No. 22
