Outside Mirrors

[Ironhorse]

Need a bit of knowledge here concerning a couple mirrors I have. Both have the same part number " 9826594 " , both with the letters " CBC " . One mirror has the number " 1 " cast in the base, the other has the number " 2 " cast in the base. One mirror head ( cast #2) is rectangular, 5 1/2'' wide,
has 10-DMI-2 on the glass and is 4 1/4'' tall. The other mirror head ( cast #1 ) has 6-DMI-6 on the glass and is more oval with rounded corners 5, 1/4'' wide, 3 3/4'' tall. Both mirrors use the same mounting stem and the same mount plate.


Is it just the fact with having same part numbers and they are different "series" mirrors? Believe they were mfd. by Donnelly Mirrors Inc. and the bases were cast by Bay City?

Can't do pics right now but will tomorrow when digital cam batteries are charged, LOL. The square bodies are a bit of an unknown for me, more of a 67-72 guy, so any help is much appreciated.