This is a question from a friend far away from here :
I have been trying to establish a rule as to when the change from the earlier, somewhat more solid baseplates to the more shiny, somewhat thinner baseplates took place. From certain sources I learn that this might have happened towards the end of the 50ies, say 1958/59.
I noticed further that the combination of shiny baseplates with aluminum rims (1960) is very often seen, but there are examples with aluminum rims and "old" baseplates around too. So, I guess, they continued to use the old baseplates until the stock was gone.
What is your opinion on this subject ? When did this change occur ?
I must say that I was not aware of this change nor is my documentation.