Italy Sardinia 80c Inverted Head Authenticity

Hello all Stamp Masters,

Found this for sale: A Sardinia 80c with an inverted Head.
Does it seem or look authentic to you from what you can see here?
Cannot provide scans unfortunately since this is on sale by someone else.

Philatelic Foundation has two copies certified as genuine. If the stamp in question does not come with a certificate I would approach with caution. Scott catalog number is 14e. CV approximately 22,000.
pfsearch.org/pfsearch/pf_grd.php?calledfrom=lkp&appl_no=&certissued=&app_coufk=162&catnoselect=eq&certcatno=14e&pfoper=All&pfgrade=&certsymbol%5B%5D=All&subtype%5B%5D=All&certcolor=&keyoper=both&keyword=&recsperpage=10&pscolumn=default&sortord=DESC&calledfrom=lkp

I have a similar stamp. Sent it off to the PF and it came back as a Forgery. https://www.stampcommunity.org/topi...IC_ID=50672&

A total forgery.The letters are not conform."N","L".in particular.Numerals have the wrong form.Letter heights are too short.
Genuine Sardegna 80c "Capovolta" stamps are scarce.Most that are on the market are reprint printers waste or total forgeries,frame and head included.

Also, the embossed head detail is very weak (except the ear), never a good sign. And the ear looks to be wrong as well.

Note the embossed dotted lines (one causing a crease), not a feature of genuine stamps. It might be trick of the lighting, but there appears to be an embossed something that shouldn't be there.

The frame is a forgery,but the head is just printers waste or sheet leftovers IMO.The head in the OP's stamp has the hairline more visible from the backside.The ear has the distinctive forms found in the genuine ears,a remnant from the better embossed heads.
The head and paper had too many defects;so I think thats why it was a sheet leftover (waste).