pair of rare antique folding rowboat oarlocks for hunting/fishing boat

Pair of rare and unusual folding oarlocks for a row boat. These oar locks are iron with riveted construction and are made to fold out when in use to allow longer oars to be used. We're not sure of the maker of these as we didn't see a name, but they have a patina of age and old brown paint.

These old oarlocks measure about 7" wide overall when the oarlock is folded out and they are about 4.75" wide across the hinge pivot.