Ugh I am so sorry, I made a mistake. Of course 3rd decade makes sense.
Sometimes my brain refuses to
work.
Your coin is of the 3rd decade of
Sultan Murad I rule in the
Ottoman Empire.
There are several
types of different akces which were issued during the rule of Murad I. The akces of
his first decade have one line through the center of the
reverse. Akces of the 2nd decade have 2 lines and Akces of the center of the
reverse and 3rd decade Akces have 3 lines. As outlined by Slobodan Srekovic.
Sorry a small fact which I
had forgotten about.