Acquired some essentially N.O.S. Atlas "O" parts and have been able to identify and label all but one group of four motors. All four have a label on them with what appears to be maybe the Chinese makers part number, RS-385PH, as well as what appears to be three different batch/lot numbers, RD514421 (on 2pcs), and one each of RD515615, RD514807.
Is there any way of connecting these numbers to a specific Atlas part number, #'s 140920, 150254 or 030215 ?
Part # 140920 appears to be the predominate motor used in the earlier runs but you know what they say when you "assume" something.
Thanks for any and all help.