You got it right those old HP's are great. I bought mine for $180 several years ago. Had to put some work into it but now it looks good as new. Working on tracking down what police agency used it. It has an extra serial number on the left side of the frame just above the trigger. I contacted Texas DPS and they said it wasn't one of theirs. Bought it in El Paso Tx so just a few more states to check in those parts. Need to get around to writing S&W and see where they shipped it to. Could cut down on some phone calls and emails.
Great shooter. Have been though many N frames, economic ups and downs, but have kept this one.

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"One Riot, One Ranger"