Interesting Franklin 156? Is This A Mustache?

I have other stamps to add. This one was an estate sale album purchase. It seems to be a 156. I would defer to others to help me further identify the stamp. The oddity for me was seeing BF with a mustache. Is this a normal element on these 1C Franklins?
Front

Back

This was my oldest stamp for a bit. Stay tuned for another oldie but goodie.

Any help with confirming this is a 156 and with understanding the mustache is appreciated.
Whisky for my men...

Hi and

I think its 147, I don't see a crescent in the pearl. Check here: (And bookmark that site.)

https://stampsmarter.org/1847usa/id...nkNotes.html

The mustache is possibly an ink pull, same as the two white blobs behind Ben. Not a normal element but not rare either, stuff happens when an 1870's Banknote company prints 120 million copies of one stamp.
Also looks like he's ready for a bath. Room temp tap water, dry between smooth blotter paper with a book or two on top. Couple days and he'll look great.

thank you

did you mean 145? I don't see a 147, but the 145 has 120 m in the guide you posted.

If it is a 145, then it is a little older than I thought!

W