Plumb NPS axe

[MickOutdoors]

So I've been scrounging the big web of axe heads for sale on ebay and currently have two Kelly works and one Collins axe head. I've been looking for a good Plumb axe head and I may have found one. Only there's one problem, I can't find any info on it. It's labeled as a Plumb NPS axe at 3.2lbs. Every search I've tried on Google has come up with zilch. Closest thing I can find is that nps could mean national parks service, but that's all, nothing related to Plumb comes up. Hopefully someone or a few people see this to help me out with figuring out if this is a unicorn axe or something made up.

 

[A17]

NPS usually does mean National Park Service, it usually means the tool was part of an order the applicable gov't branch placed with the manufacturer. There are a fair amount of Conservation Corps and Forest Service stamped tool floating around as well. The 3.2 is actually 3 and 2/4 of a pound, or 3lbs 8oz.