Axe & Hammer - Manufacturer IDs?

[Triplelock]

Garage sale season is once again here, and with it random axe and tool acquisitions. I've become pickier, but so far I've come up with two things:

I believe this is a cross peen hammer?

The mark on top there is the only one and it appears to be a P above an S in a little shield. Any idea who that is? Seems fairly distinctive. Whoever made it's a rather nice little hammer, I will have to rehang it correctly at some point here.

This axe has only one marking that I can find, the P you see in that second picture.

 

[Hickory n steel]

Does the Michigan pattern have eye ridges ?
I'm thinking it could be a TT woodslasher.


I recognize the hammer marking with the PS inside a keystone

 

[Triplelock]

No eye ridges, smooth inside. I haven't finished getting rid of all the rust yet, but I took off most of it, naval jellied the inside, BLO'd the handle, and rehung it.

Keystone! Thank you, that's it I think. Pennsylvania System! Looks like it was for the railroad? Here's a lantern with the Logo on it

P.S. Keystone logo Pennsylvania Systems Adlake Reliable | theantiquelantern

Pennsylvania System" was the service mark or trade name used to designate the combination of Lines East and West. Adam's and Westlake Adlake Reliable Stamped PS in the keystone logo Correct matching Corning no39 globe also PS embossed. No.1 bayonet burner. Condition - very good, clean...

www.theantiquelantern.com

 

[A17]

I think I recall Plumb using a P and other marks (a crescent, star, etc) on some of their axes, but don't quote me on that.