Here is my Sportsman. I wish it was single action or SA/DA instead of DOA only. Not bad for $299.99 at Gander Mountain's used case.
My grandmother inherited from my granddad a "999 Sportsman" that is SA/DA. I haven't seen it in a couple years, but the next time I go out there I'll try to get the info from it too.
1. B5044
2. Firing pin on hammer
3. no safety rim on cylinder
4. small button on left side for cylinder release
5. Harrington & Richardson Arms Co., Worchester, Mass., U.S.A.
6. DA only
7. Adjustable front. It is pinned about 1-1/4" from the muzzle. Then there is a set screw on the muzzle end for adjusting height.
Original box, papers, and wax paper wrapper: