Not much is known about the exact type of hats that Robert Harmon made. However, we have a newspaper advertisement for the hats that he was selling. It says "REMOVAL. -- ROBERT HARMON, Would inform his Friends and the Public, that he has removed from his former stand, in Fore-street, to No. 7, Jones' Row, Exchange-street, where he constantly keeps on hand A General Assortment of HATS. Portland, Dec. 20. 6w"