You could try them, although, [1] unless they have them listed in their archives, and, [2] someone is actually willing to search through them, they may simply tell one what she/he wishes to hear, whether or not it is accurate** (or, more likely, the response would be "there is nothing in our archives"). It is entirely possible that production records of each individual tool designation might not have been kept.
{Concerning ** on # [2] above, for example, on Tandy's blog, a question was asked about the old ruby blades & stropping, & the answer given was that they needed to be stropped as often as steel blades... that is totally wrong :wtf: . Ruby is the second hardest substance, after diamond- steel doesn't compare in hardness. But this is one of the inaccuracies one gets from some of the corporate people who really don't know.) But enough- Good luck!