Towers and Bells of Devon gives the following
Tenor - WALTR KING CW RICHRD KING SDMAN @ PENNINGTON FECIT 1764 @@@ 
Diameter 37" 940 Hz A flat 8 1/2 cwt (skirted; very poor tone); there 
is no mention of a crack
Tenor by Penningtons of Lezant, Cornwall.
Phil Lucas