[Heathkit] SB-220 meter question

[bonddaleena at aol.com]

Hi. I was wondering if anyone had the following, about the 2 meters used in the SB-220 amp:

I know the P/Ns:

407-147 Plate current meter
407-146 Multimeter

I would like to know the specs. Nowhere in the manual is there a description of the value.  They sure look the same, except for the face, of course.
0-1 ma or ?????

thanks!

ron
N4UE