Category

• Philately (8)
• Picture Postcards (1)

Country

• Greece / Ελλάδα (9)

Attribute

• Picture Postcards (publishers, photographers, printers) (9)

Historical

• War Periods & Military (9)

Geographical

• Macedonia / Μακεδονία (5)
• Ionian Islands / Ιόνια Νησιά (Επτάνησα) (2)
• Peloponnese / Πελοπόννησος (2)
• Thessaly / Θεσσαλία (2)
• Aegean Islands / Νησιά Αιγαίου (1)

Topic

• Military & War (8)
• Ships & Boats (2)
• Architecture, Buildings (1)
• Bridges (1)
• Costumes (1)
• Medicine (1)

Kind of Item(s)

• Postal Items (8)
• Image items (4)