The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Panama Canal. Gatun Locks. View From Control Tower. Mike Roberts. Flatau. 1978
Panama Canal. Gatun Locks. View From Control Tower. Mike Roberts. Flatau. 1976
Mitre sill for gates. Gatun locks. Panama Canal. I. L. Maduro
Panama Canal. Gatun Locks. E. Lopez Tapia. Balboa
Gatun Locks Panama Canal. B. Hopkins
Gatun Locks Panama Canal
East Chamber looking north Gatun locks. Panama Canal. I. L. Maduro
Gatun Locks. Panama Canal. H. V. Scott. 1934
