Small block 727?

Just bought this trans today for $100. May be OK, may be a boat anchor, don't know yet. Sure it's a small block 727, but the numbers on the list I found don't go this high. Trying to figure out what year so I can get replacement parts for it.
Serial # is PK4412004 9267 2200. Pics attached. Any help would be appreciated. Thanks!

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If that dust shield has a number on it I would appreciate it if you could give the number to me thanks it’s looks like the one I been looking for