Dunster Beach and St. Audries Bay seasonal post offices

Bother Dunster Beach and St. Audries Bay were seasonal post offices.  Dunster Beach was open June to September 1937-1939 and 1951-1978.  Here are a couple of philatelic examples from 1959 and 1961.

St. Audries Bay was open April to September from about 1949 to about 1973.  Here is another philatelic example from 1959.