Welcome to the forum DrK.
Very nice 19 commemorative. I picked up a 19-5 West Virginia Conservation Officers commemorative, 1 of 133, a couple of weeks ago. LNIB, in the wooden presentation box. Unfired since the factory. I fixed that.
The dealer had $700 on it. I traded him a 686-4+ snub for it - even. I was in the snub right and had confirmed I have no use for L-frame snubs.
So, locally that 19-5 commemorative would probably bring $650 to $700. Hope this helps! Regards 18DAI