When did NYSW adopt the green "Susie-Q" Boxcar paint scheme?

Does anyone know when the Susquahanna first started ussing the “Susie-Q” emblem on box cars, this emblem featured a cute carcature of a girl holding a switchmans lantern. I am also interested in finding pictures on the internet of these cars, any help would be apreciated!

IIRC the “Susie Q” decal set I have says it’s c.1964.

Thanks, that helps!