Not saying this is a Maryland token.
But, from the book Maryland Merchant Tokens it lists 2 tokens with J. F. W. both with a value of 4 and 10.
They are similar to yours but do not have the wreath and the letters are incused. Both listed as Brass, the 4 is 19mm and shape not stated, The 10 is scalloped (12) and 23mm the ones above are from a cannery is Tilghman, Maryland. The Cannery belonged to the Covington Brothers. John, Frazier and Wilbur.