When a plan has blue background with white lines (blueprint) like the MK Super Tiger 3 plan it must be a rather old plan/plane I guess.
Not sure when use of blueprints died out but one seldom see any drawing from 1960s in blueprint, perhaps this MK Super Tiger 3 is from early 60s?
I believe Kato Model Aircraft Co Ltd that made MK kits (MK=
Masahiro Kato) etc was founded in late 1950s or early 1960s? The boy on the kitbox seems to have a reed radio in his hands (almost looks like an Orbit Reed, notice the bowed "logo" on the TX, Orbit Reed had that in 1962 and some years later) so probably the Tiger 3 is from the rearly to mid 1960s? At least in 1962, when
Masahiro Kato competed at World Championships RC-1 (F3A) he had MK decals on his transportation box for his plane(s) I have seen on a color video from that WC, so he had brand MK in use already at that time.
/Bo