Being that the radio is crystal controlled, it was probably made back in the day when there were not so many repeaters, and CTCSS codes were not that necessary. If you were on 2m in the 70's not many repeaters (at least in my area) had tones.
There used to be a company that sold outboard tone generators can't remember if they are still around.
You could use the radio for simplex channels like 146.52, .58, etc as tones are not used on those. There are some repeaters that still use no tones, but they are few and far between. Check radioreference.com and check your area.
Older radios still have an appeal to them. Sometimes you spend more money than you planned but if in the end you are happy, hey, more power to you. Buying from the heart and not the head has its advantages.
Here's one for the techies out there: what if you set an audio generator for a CTCSS tone and fed a low level of that into the microphone, would you be able to access a tone access repeater? I'd say yes in theory. You'd have to set the level just right though.