Schrade Walden 204 info ???

[Lostball]

I posted this question elsewhere but should've come here first after I thought about it. A little while back I acquired this Schrade Walden 204 electrician knife. When I received it it was in much better shape than what I thought originally and for the price that I got it at I was extremely satisfied. My attempt at researching it leads me to believe that it was made between 1954 and 1959 and possibly has Cocobolo scales on it. The tang stamp reads,
Schrade
Walden
NY USA
It has "204" on the reverse side of the main blade. Am I Interpreting this correctly? As I said before I am very happy with this knife as it is in near mint condition.