The word deltiologist, derived from the Greek 'deltos' meaning writing-tablet, refers to a collector of what?
the word deltiologist, derived from the greek 'deltos' meaning writing-tablet, refers to a collector of what
FreebaseQA-train-5638.P0
deltiologist
deltiology
m.09q4qb
interests.collection_activity.type_of_thing_collected
m.0fd4f
postcard