Three comic postcards

I found three comic postcards of interest over the weekend. We saw another postcard from this series last year -


Oysters Rockefeller postcard by Canadian cartoonist Jeff for the Hilton of Canada in the 1960s. Anybody know anything about Jeff? I find it a little weird that I've found two of these cartoons in DC.

We also saw another one from this 1907 4th of July / Independence Day series by Gene Carr-


British cartoonist Tom Browne's "Joys of the Ocean" postcard is new though. I'm not sure what the sailor's words mean.


The British National Archives apparently had an exhibit that included some of these postcards.