IIRC David Starley presented a paper on medieval arrowheads at the 37th
International Congress of Medieval Studies in Kalamazoo MI, USA, two years ago.

You may want to contact him to see if he has published.

David Starley PhD
Science Officer

Royal Armouries Museum
Conservation Department
Armouries Drive
Leeds LS10 1LT
United Kingdom

Tel. 0044 (0) 220 1919
Fax 0044 (0) 220 1917

(off the archeological metallurgy list)

I have done some work on replicating a renaissance quarrel point I purchased in
Germany. The corrosion shows how it was made fairly clearly and I have a decent
supply of wrought iron including bloomery iron.

Thomas Powers