I do believe this is an early example of Farrah's authentic signature. I do think it is perhaps a rushed signing, perhaps in a crowd...BUT I have seen many of these from around 1977-1983-ish where the F loops into the A. I think it is real. Also, the L in Love is consistent with later signatures of hers. My opinion however.
here is an example of Farrah's signature from the early 80's where she did "loop" her F's. She didn't do this for very long.. and it went back to her famous cleaner signature. This is my signature that I have had since the 80's and if you look at Vintage Farrah signatures you will find a few of these looped signings.
Looks okay to me