Hiya :-) Sorry about taking my time to get back here & thanks for alerting me to the question....
This is an informed guess, but the mighty Coronet Commander is like most toy-ish cameras and will focus from about 85 centimeters to infinity. I discovered a long time ago that my arm is the exact length of the closest point of focus that I could get out of my old Holga and once I worked that out I used it as the 'rule of thumb/arm' for all other toy cameras and I never ran onto trouble.
Shane: Welcome to Filmwasters. The Commander is a fantastic UK camera; I hope you have a lot of fun with it.
Nigel: I'll be at the bar nursing a peach daiquiri.