Category

• Philately (4)
• Photography (2)
• Picture Postcards (2)
• Documents (1)

Country

• Greece / Ελλάδα (9)

Attribute

• Philately (Postal History) (5)
• Picture Postcards (publishers, photographers, printers) (3)
• Philately (Postal Stationery) (1)
• Philately (Stamps) (1)
• Photography (Photographers) (1)

Historical

• War Periods & Military (9)

Geographical

• Macedonia / Μακεδονία (3)
• Peloponnese / Πελοπόννησος (2)
• Asia Minor (Turkey) / Μικρά Ασία (1)
• Central Greece / Στερεά Ελλάδα (1)
• Thessaly / Θεσσαλία (1)
• Thrace /Θράκη (Δυτική) (1)

Topic

• Education & Schools (9)
• Military & War (5)
• Religion, Churches (2)
• Royalty (2)
• Architecture, Buildings (1)
• Aviation (1)
• Dance (1)
• Hellenism (1)
• Music (1)
• Ships & Boats (1)

Kind of Item(s)

• Postal Items (5)
• Image items (4)
• Stamps (any) (1)