WWII Era Greek Sailor Cap from B. P. Elli sunk by Italian Sub Aug 14 1940. This ship was sunk in peace time by Italy while the Elli was anchored in the port of Tinos. Inside Google  translation of label is Antonis Papamichael-- a major supplier to the Greek Military during WWII. In addition, Antonis Papamichael from Piraeus, Greece, a military WWII supplier to the Greek military, ceased doing business in the year 1950.  
Sources:  
National Archives of Greece: The National Archives of Greece hold historical records and documents related to various aspects of Greek history, including information on businesses and suppliers during World War II. 
Hellenic Ministry of National Defence: The Hellenic Ministry of National Defence may have archives or records pertaining to military suppliers during WWII, which could provide insights into the activities of individuals like Antonis Papamichael. 
Piraeus Chamber of Commerce and Industry: The Piraeus Chamber of Commerce and Industry could potentially have local business records or historical data that shed light on the business activities of Antonis Papamichael in Piraeus during the mid-20th century.

Dimensions (approximate):
8.5 inches round by 3 inches tall

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