Reference
Note:
Series E 'The Later Porcupines', pages 222-242; Kloster Barthe hoard, pages 234-237
This specimen
Yes
Reference
Note:
Dating, page 54; Series E (BMC types 4-6) and secondary Kloster Barthe phase dating (710/5-730/50), pages 110-111.
Reference
Note:
Cf Groningen 1, Lutje/Saaksum 15