I have two large books of Fenton glass. There is only one section with the pinched vases. Robert Barber Collection. 1975-1976 It's the hanging heart series. The large 8" vases is quoted at 175-185.00 and th3 4" is 75.00 5" 125-150.00 and the 6" 150-175.00
I'm still looking to see if I can find your vase exactly, but as of yet I haven't.