This c. 1880 long nose putter is made by the famed 4-time British Open champ and Grand Old Man of Golf, Tom Morris. Morris was already a legend in the world of golf when he died in 1908, and he remains such today. This putter is a solid example of Old Tom's work.
The greenheart shaft and sheepskin grip appears to an old replacement, installed when the club was in use. Clubs that had their shafts replaced when in use are not viewed as all that much different from clubs with their original shafts, replacing a shaft being part and parcel to the game as it was once played. It was certainly no problem to the owner of the club, F B Elliot, who stamped his name on the shaft. The bottom 15% of the neck whipping is replacement whipping. It matches up well with the original whipping.
Much of the black finish has worn of this club, but it still looks quite attractive as there is no damage beyond normal wear. For more on Tom Morris, see TCA2 volume 1 pages 62-65 & volume 2 pages 564-565.