Hi, I have been working on an Op.111T which I acquired recently. This stove appears to be have been little-used but had suffered severe under-burn at some stage, which damaged (by melting) the spigot inside the silent burner, resulting is a slightly irregular flame pattern. I exchanged the faulty silent burner for a roarer, which I had in my spares box, and have had the stove running very well. Here are some photos of the fettled stove which I took today: I have done nothing to the case except clean and wax it. I added the spirit flask and "Nick design" inner tray. The spanner for the jet and packing gland, and new windshield are Base Camp replacements. It is interesting that the Tank SRV has a square section socket, as seen on some Military Op.111s. Best Regards, Kerophile.