https://www.ebay.com/itm/Vintage-Camillus-NEW-YORK-USA-17-3-7-8-2-blade-Bird-gut-hook-AW-knife-NOS-IN-B/184422872810?hash=item2af075b6ea:g:z5cAAOSwi8pfI4Gc
It's not a case but it looks very similar.
Has a listing but no knife?
https://amersonfarms.com/search-by-style/
Closest I could find.
https://caseknives.com/products/amber-bone-peach-seed-jig-hunter-trapper
Might have better luck finding a green unicorn.
https://www.ebay.com/itm/CASE-XX-USA-523-3-FIXED-BLADE-BIRD-KNIFE-JIGGED-BUFFALO-HORN-HANDLE-NIB-UNUSED/383569678609?hash=item594e88d111:g:~hAAAOSwGdJetUh0
I entered a search just like your title.
Located a few in the garage today. The top is the 392 and the small one under it is a 301 and the the 112 and 110. Have the original cases for them also.