The Leica 50mm F1.4 Summilux Black Paint

This Leica 50mm1.4 Summilux black paint, #1661029, is in wonderful condition with only minor patina.  I rate this one cosmetically at (9) condition.  These early Summilux lenses also have an optical quality, which is very pleasing.  This is a very early sample from 1959, which has the red scale...