a1 Kelvingrove Art Gallery and Museum, Argyle Street, Glasgow G3 8AG, UK. E-mail: <firstname.lastname@example.org>.
a2 20 Portland Street, York YO30 7DZ, UK. E-mail: <email@example.com>.
a3 Department of Archaeological, Geographical and Environmental Sciences, University of Bradford, Richmond Road, Bradford BD7 1DP, UK. E-mail: <firstname.lastname@example.org>.
The recent identification of whale baleen from a medieval archaeological context in Perth raises the issue of what uses were made of baleen in the medieval period. This note investigates the military uses to which this unusual material was put.