That’s how I got my M29-2 (blued, 6-1/2” bbl) back in ‘77. It showed up at the LGS and the manager called me. I was in college at the time so he allowed me to put it on layaway ($289.50 + sales tax). I still have it too.
I also still have the 2 29s I bought back then. A 8 3/8 blue and a 4'' nickel, both in presentation boxes. Both have taken deer!
Not sure how much longer I will have them due to hand problems, shooting a heavy nasty kicker is getting difficult. My two sons might soon get a addition to their gun safe!