You need a somekinda jig fixture where rotate them camshafts. (Having them installed in an engine block works - naturally). Then you need a degree wheel and a dial gauge. Equipped with these you can find out every aspect there is to know about camshafts.
Except maybe country of origin
I recently ran into two american 6-cyl cams. I friend needed to know what they were. While he made up a jig for rotating them on a table, I used my time to make up a rough degree wheel out of suitable stuff I found in a garage.
I always make proper TDC marking on engine block/crank sprocket. Ignition and cam timing marks are filed onto crank pulley. This way I myself have no need for a degree wheel at all.
This way it's a real low-labour effort to change cam timing, when for example making comparison runs on a chassis dyno. No way to accomplish that with a degree wheel system.