Hello arkaren, This is from the Greek occupation of Cavalla in 1913, Scott Greece #N171. Nice stamp but there are lots of forgeries and reprints.
You might find this article of interest: https://www.pvgriekenland.nl/publications/KavallaUK.pdf
Thank you both so much!!
Please see this Bulgarian Tsar Ferdinand stamp with a Greek red overprint. I cannot locate in Scott. Can anyone please help? Thank you.
re: Bulgaria stamp with Red Greek overprint need id please