Originally Posted by Eatadonut
How can you tell what line of campy cranks those are, and is the engraving thing they do for the first year of every line, or just for C-record?
As for the line of crank it's just from memory and dream knowledge
The engraving is definitely a thing of the past. Super Record and most older Campy stuff was always engraved, they even engraved the bike maker's name and or logo on a lot of Campy parts back then, this was known as Pantograph parts.
I'm not sure when Campagnolo stopped engraving/embossing the parts, but it is a tradition that is sorely missed by me.