Don Wilson wrote:
> Would there be different markings on NR and SR crank
> sets that would indicate age. I recall NR cranks had
> certain markings that indicated approximate age. Do SR
> cranks also have such markings. Or did they abandon
> such markings with SR cranks?
The arms are marked in th same manner as Nuovo Record arms; there was no separate manufacturing process for them.
--
John (john@os2.dhs.org)
Appleton WI USA