The Caistor-by-Norwich astralagus is a roe deer astragalus found in an urn at Caistor St. Edmund, Norfolk, England. The astralagus is inscribed with a 5th-century Elder Futhark inscription,[1] reading ᚱᚨᛇᚺᚨᚾ raïhan "roe". The inscription is the earliest found in England, and predates the evolution of the specifically Anglo-Frisian Futhorc and may be a Scandinavian import, perhaps brought from Denmark in the earliest phase of the Anglo-Saxon settlement of Britain. It is an important testimony for the Eihwaz rune and the treatment of Proto-Germanic *ai. The h rune has the Nordic single-bar shape ᚺ, not the Continental double-bar ᚻ which was later adopted in the Anglo-Frisian runes.