Hickey Freeman has their own factory in Rochester,NY. Are they made in USA? If you can't find a label stating that, then it may well be a part of a suit. I have a HK suit with pants with no label at all.
It is a mainline HIckey FReeman by the label. It is not their new label. On newer slacks a light blue Hickey FReeman runs in small bands across the inner belt line.
It could have been custum, or part of a suit?
Nice slacks my friend.
I say maybe about 10 years old.
I picked up another a pair of khakis from the same donor and noticed it had a tag. Turns out, they are both tagged. But I'm still at a loss as to what vintage, etc. I'm pretty sure, though, that these are not suit pants.