hi! i'm looking for a little help putting a value or maybe finding a collector who would be interested in this knife i've found. i don't know much about it, so any info would be appreciated! it has the arm and hammer logo, it is kind of worn but legible. i have not tried to clean the knife in any way, this is how i found it. there is no imperial stamped on the opposite side of the blade, just a patent number. the blade pops out when the button is pushed, but not all the way. the lock works well. thanks for any help/info! sorry about the poor pics!