"81 R" is not the catalogue number, but the speed (i.e.: 81 Rpm). The catalogue number for most Jumbos are pressed in the run-out area near the label (looks like: "Cat No _").
Label designs changed throughout the years for most labels, so it's possible to find a specific record re-released on multiple different versions of the same label.
Your record, images {1986018} & {1986019}, are probably from the original release. Whereas image {1646123} portrays a later release, most likely from 1923~4.