Anne — See:
Topic: can anyone id this decanter thanks (http://www.glassmessages.com/index.php/topic,29154.0.html)Topic: TRIANGULAR SHAPED DECANTER (http://www.glassmessages.com/index.php/topic,32176.0.html)
In my experience all JC Cottle's registrations are for these standard cordial decanters. He may have been a factor/importer in his own right, but I think it more likely that he was a director/manager of another, probably Lang, and submitted these registrations in his own name. A check at Kew should provide the explanation.
Bernard C. 8)