Inland and NPM used that N.I. marked Front Sight

[imntxs554]

I was going through more M1 Carbine parts to put a couple more package's together for Inland and Winchester and came across that N.I. marked Front Sight that I bought not knowing it even had a mark there. I seen this website that has probably every mark on every part in all the Carbines made and it's for a Inland and I had seen that only NPM also used it , but on the Inland it has a period after each letter but the NPM doesn't have them. Looking at it with these new glasses and a magnifying glass I'm pretty sure I can see them like this website shows them under Inland and not any other. I kept it because Painter advised that I should hold on to it until more info comes out about it and I'm pretty sure I forgot who but someone mentioned he thinks they ended up dropping the " I " and the number they were going to put on the side. Well that's what I'm thinking after going back and reading the replies to the post I put up about it. Here's the Website and I can post some close ups and see if anyone else can make out those dots. I personally still have not seen one like this one I have, but it just doesn't make sense to me that somebody had this idea to put the mark there in that spot. That probably was not a good idea that's why it went away and there's not many of them at all that's my opinion. I'm pretty sure I would of seen one by now if therre plenty because I did look at a lot of Carbines after posting that Front Sight.I still not seeing anything definite only lots of confusion or maybe it was just me.

https://www.qsl.net/wd4ngb/markings.htm"]M1 Carbine Markings