Thanks to all of You for your quick replies!

I realised soon after shutting down my computer last night that as Rodda was mainly based in Calcutta, it is surely propable that their guns have travelled from B:ham to India via London Proof House.

I guess, your replies may support that assumption, too.

470evans,
How can you tell that your W:m Evanses are from Birmingham if they carry London proof stamps? Do you have copies of Evans' ledgers, perhaps, or do you have some other glues?

Hi Marrakai,
I knew that I can count on you surfacing sooner rather than later. Is your crystal indicator Rodda made by Webley & Scott? I browsed through the net just a couple of days ago, and stumbled upon a W&S gun, which had very similar side plates and peep holes with your rifle.

Regards,
Saku