Picked these up at the club tonight. No one else was interested, oddly enough.
Greek I think and with the picture of the communications tower, I can only assume celebrating the 50th anniversary of radio/telecommunications in Greece?
If anyone has a better idea, I'm all ears.

The centre label has a big honkin' ink hickey on the 0 of the 50.
They are on an ugly piece of brown envelope. I'll be soaking them off.