Israel bank stamp: turtle
I think this is from a set of Israeli Postal Bank Savings Stamps depicting various animals (not regular postage). If anyone has more info on this series please let me know.
My guess is that the designer could be Asher Kalderon, but it is just a shot in the dark.
“A sheet of 25 green horse-and-dragon stamps, along with a sheet of a similar design but in red, sold for $1.3 million at auction Saturday in Hong Kong, setting a new record for a set of Chinese stamps.”
c. 1886, “commissioned by the Chinese Empress Dowager in 1886 for Taiwan”