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[[File:Axe parts.jpg|thumb|200px|left|Parts of an Axe head]]
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Petersen [Pertersen 1919] used the following to determine the typology:<br>
# Spurs - can be long or short, more or less pointed, or cut clean, upper and lower lobes can be of different length, they can be directly opposed to each other, or offset, one further forward than the other [Petersen 1919]. <br> Projecting spurs are a feature of Scandinavian rather than Anglo-Saxon axe heads. [Pearson 1981:p.161]