How to tell 3845 hardware rev?

I'm looking at using a mix of new and refurb 3845s. Looking at my existing

3660s via "show vers," I don't see any hardware differences.

Does Cisco issue different hardware versions of the same product (e.g.,

3845) across its life span and, if so, how do I learn the versions and their differences?
Reply to
Burt Gummer
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