Here is a better picture along with a few others after your question i was curious and Google some pics. Looks like there were several variations. Its definitely steel checkeredNice looking rifle! Question: whats up with the buttplate on it? Looks like wood or something? A spacer for an adjustable plate? Which was very common. Doesn't appear to be the original steel checkered?
Ill pull some out Tuesday when I’m free and post some pics for everyone since some of you have interest thanks!