I was basically given a few old rolls of 16mm PlusX reversal and TriX neg. It has been sound striped by Zonastripe and canned as 200' daylight spools. The only info stuck to the cans, typed on a small piece of paper and cellotaped on is...
MAGNETIC SOUND STRIPE
PLUS X REVERSAL
CONTROL No. 1341
TRI -X NEG.
or sometimes 53475
So is there any way of knowing what stock this actually is, or of estimating its age based on these Zonastripe numbers, or the dates within which Zonastripe were active.
If I process some will the edge numbers or other info on that edge give some clue?