4 Stamp owner?

Does a more knowledgeable member know the name of the seller who owns this 4 Stamp, listed on eBay? His inbox is full and I can’t message him. Any help is greatly appreciated!

https://www.ebay.com/itm/1-of-1-NIGHTOWL-ULTRA-RARE-Michael-Myers-Mask/174060628603?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D40741%26meid%3Dda5fc7f99cd946129b275ccbd6ae2d14%26pid%3D100675%26rk%3D1%26rkt%3D15%26sd%3D174060628603%26itm%3D174060628603%26pmt%3D0%26noa%3D1%26pg%3D2380057&_trksid=p2380057.c100675.m4236&_trkparms=pageci%3A73055995-f132-11e9-9b6c-74dbd1802257|parentrq%3Adbf6f9cc16d0a489bf8cdccefff59ce0|iid%3A1

What does 4 stamp mean?

Anyone mind helping?

Wow, thanks.
Good luck with your answer, haha

Sorry man . There are 4 distinctive stamp on the back of the mask, hence the name “4 Stamp”.

They’re referring to the NightmareMan 4 stamp run from Nightowl. Love this mask, and wish I would’ve got in on it back then, haha.

There were a few versions of the Nightmare Man 78, the “four stamp” version gets its name from having four distinct names stamped on the back of the neck: Nightowl Productions - Justin Mabry - Billy Kirkus - Nightmare Man '78.