I don't think they were actually rare, unless it was because
Coach only made them for a short time. And usually that means they didn't sell as many as they hoped. I don't have any details although I'll take a look through my catalogs a bit later. My guess would be an early 2000s Leather Swingpack judging by the creed and lining, maybe 2000-2004? Other than that I don't know anything about them.
Remember too, just because something is "rare" meaning you don't see many for sale, that doesn't mean it's more valuable. It might just mean that it wasn't very popular, attractive or practical. And just because a seller uses "rare, unique, hard to find, vintage", and especially "Bonnie Cashin" in their listings doesn't make it so. This one may have been made for the outlets (MFF).
ETA - Found it. Zip Swingpack #6938 from the Fall 1999 catalog. It didn't even make it into the next catalog, Holiday 1999.
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