fringe ogam on this style of a flying horse reads closely to Old Norse Nefni
Sleipnir = "itsname is Sleipnir."
The reference is to the magic steed Sleipnir, obtained by Loki for
Woden. This is a good example of the
persistence of an artistic and mythological tradition, for the carving is in
a nonresistant rock in the Milk
River Valley, Alberta, Canada, and must have been completed within
recent centuries (Fell 1982).