Antique Artisan Design & Craft Old Gold Hallmarked "HP"&"hp" followed by what appears to be a Roman Numeral "I," w 17" chain bearing several marks:"750," a logo that looks like open lock, as well as "195," & either "AK" or "AR" Vintage: latter half of 19thC Craftmanship: American (or British) Arts & Crafts Movement inspired by the social reform ideals & designs of William Morris which challenged the tastes of the Victorian era. I had brick & mortar Antiques business 34yrs & collected jewelry. I took the cross to a goldsmith who couldn't make out the hallmark distinctly either. He did say that it is gold, not merely gold plated. I pointed out what I assumed was worn plate, he replied that old gold can have that appearance.