This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Hampden Machine cancel Havana. en Hampden machine cancel from Havana The Hampden machines were not very reliable nor effective Their distribution was in large part attributable to political connections in the Post Office Department The Havana cancel is rare When Morris and Payne wrote their book on Hampden cancels in only one was