RJ 58/59 serial# range needed asap

[ww2imposter 2]

There is little known about When Horse production numbers, but when we come across information related to production, we should save this in a common place. Rules as usual, add your entries here, I will move it to the top and delete the individual posts.

rj-58

1958 - 20,000

rj59

1959 - 2500

I got these #'s from the FAQ forum here. Are they correct? If so how does this "woodchuck" decifer them?

I'm going on a road trip early tommorow AM to look over a 1958 RJ and I'm rather short on time. Thanks