Flag of the Hellenic Merchant Navy (1822-1828) Dubious: decree authorizing the flag does not mention the merchant flag as striped (cf here) --- source: click here
File:Flag of Greece.svg
Presidency of the Republic of Greece:" The only difference in the flag of the merchant marine was the reversal of colors in the corner where the cross was (a blue cross on a white background)".
File:Flag of Greece.svg: (of code) cs:User:-xfi- (talk) / *derivative work Philly boy92