Bob,
Your Right, Pattern is no match.
Your's looks more like the link in post 2 that ww321q linked to the ones being offered by 'George'.
I still wonder if these were some type of WWII/Post War replacement made in Europe (FAL ?) or Japan.
I'll have to look closer at the one I pulled from the FAT stock, (Not pictured above). That one looked close. That stock was passed to me from original owner of FAT Carbine from CMP.
Ch-P777