This is a 1961 technical manual for the M79 The M1 sling, FSN 1005-654-4058, is specified as a repair part No changes have been made since then.

Sorry guys, not exactly clear what a forum is nor do I have 29 more ideas. 

This forum is for US related material.   The other site is World Militaria Forum.   Same rules for 30 posts apply.

You need at least 30 posts to sell on the forum.

IMO it is a legit US M3 blade. Below is another thread from a different forum. It does not have a lot of new info, but a number of pictures of additional Norwegian converted M3 knives. Norway converted M3 thread another forum

I live in the Houston area, and I have recently inherited a very large collection of WW2 German items and WW2 and present Soviet items. While I find these items extremely interesting, I am not a collector. I tried to post this in the For Sale section, but it will not allow me to do so. The items include Nazi flags, swords, Nazi marked firearms, medals and pins, a Japanese rising sun flag and Soviet medals, pins, badges, patches, daggers, flags and sword. I am interested in selling the entire collection so contact me if you are interested. Pictures available upon request.

Doesn’t look bad, a nice salty helmet.

The photos inside seem to be wire service photo originals. It's women's service topic. And the B-17 on the scrapbook cover has the sharkfin tail of the early models.

https://www.ebay.com/itm/306360264945

Do you have any photos of him or info that you can post?