call for sources

Call For Sources: Spears in the Imperium Romanum

An intact spear and buckler from the famous excavations at La Tène, Switzerland. Planche II of P. Vouga, “La Tène: Quatrième Rapport, Foulles de 1910 et 1911,” *Musée Neuchâtelois*, XLIXme Année (1912) pp. 7-15 http://doc.rero.ch/record/12454

There are many great publications of Germanic, British, and Celtic spears. Are there any published spears from the imperium Romanum, especially the eastern half? Or from pre-imperial Italy? I’m curious about what woods were used, how the diameter varies from point to butt, and the overall length.