An auction listing from a few years back:
Two H&R Sportsman Double Action Revolvers | Rock Island Auction
Both are interesting, one being an example of the engraved "1 of 999" version, while the other dating from 1953 would represent one of the earliest post Rice frame guns. On this latter one, note the relief cut at the top of the left grip panel. I'd be inclined to think this to be a modification made by a previous owner rather than it having left the factory that way, but if so it was beautifully done.