First vintage of half-tracks with hooks.
To the left of the Apple number in ink.
For years it was considered a Cracow issue. Incorrectly, as Slawomir Dudek discussed in more detail at our National Numismatic Forum, presenting a number of arguments refuting the attribution initiated by Marian Gumowski. There is currently a debate as to which of the Crown mints could have minted these coins. One hypothesis is Malbork, as Cezary Chelchowski wrote about in an excellent article (BN 2/2021). Another theory is the mint in Wschowa.
Type with Apple and shield.