That particular patch actually has a lot of meaning to me. It was 40+ years ago. I was with my parents visiting my fathers childhood friend in Long Beach, CA. It was a Saturday and on the way back from lunch we stopped at a garage sale. An older lady, or at least she seemed old to me at the time, was holding the sale. Odd that I can still see her face. Dad, as he always did, asked if she had anything military related for sale. She said her husband was a Marine pilot during the war but the only thing she had left was a book. Dad asked if he could see the book and she went to the house to retrieve it. For the life of me I cannot remember what the book was. But I do remember him opening the front cover of the book and that patch falling out on the table. I think he paid $20 for the book and the patch. As dad did not collect WW2 at the time (he collected WW1 USMC) he eventually sold the patch to his good friend Jeff Millstein. You will notice that dad is mentioned in Jeff's book.
I recently had the chance to buy a nice example (on canvas) which reminds me of that day with dad. Hard to believe that he has been gone almost a year now.
Thought I would post it here as a base material variation (same decal)
Thanks for posting it. Loved seeing it again.