Dave,
are you a "completist" in your collecting? ... [at least] one of every variation of every model, including variations in packaging/boxes ?
have you uploaded/posted pics of your collection? I'd like to see it!
I can't speak for Dave, but I don't believe there is enough information known about the history of the various makes and models of ASR razors and their predecessors to be able to know when you are even close to "complete" in any aspect of such a collection.
We don't seem to be even close to pinning down the production date ranges for most of the models. You name the model and I'll wager that nobody will feel comfortable in giving a manufacturing date range.
Without the luxury of date codes or serial numbers such as on many Gillettes, we probably never will know just when which models were produced nor just how many varients there were of many of the models.
Regards,
Tom