Thread: Newburgh Colliery Explosion
View Single Post
  #5  
Old 16-11-2013, 04:36 PM
Coquet's Avatar
Coquet Coquet is offline
Administrator
  
Join Date: Feb 2010
Location: Amble
Posts: 3,253
Default
The Duke seam is the K seam in the NCB letter system I believe. AKA Brass Thill at Ellington. Although it is split in two often; K1 and K2.
Reply With Quote