Reference
Note:
Series E 'The Later Porcupines', pages 222-242; Franeker hoard, pages 238-242. Dating of Franeker phase estimated from c.735 or later, for a short period.
This specimen
Yes
Reference
Note:
Dating, page 54; Series E (BMC types 4-6) and 'tertiary' Franeker phase dating (730/50-800?), pages 110-111.
Reference
Note:
Dating, page 143.
Reference
Note:
Pages 58 (especially note 8) -71 (especially note 4).