Signed Sterling Silver Initial F Pendant

Sterling silver initial F pendant is signed what looks like hp 92.5 and features a separate front and back connected by silver bars.  It  measures about 1 3/8 inches, including the large bail, by about 3/4 inch wide and it has a thickness of 4mm.  It is lightweight weighing 3.7 grams and it is new old stock so it is unworn and unused.