My last of three pipes completed this week. I've never seen this finish before. I assume it is Cadogan era, but it has the oddest C logo I've seen. Its not a typical stamp but quite deep and durable (found that out by accident!). The full details are on the Reborn Pipes blog:
Reborn Pipes - Comoys Supreme Grain
Finished pictures:
Reborn Pipes - Comoys Supreme Grain
Finished pictures: