Here's a picture of my T Latch serial #70. I acquired this gun in the mid 80's. Externally it was in very good condition! The stock and forearm were excellent. The bores were dark but just lightly pitted. Unfortunately, I sold this gun around 2002 to raise money for something else. I never shot the gun because it had decarbonized steel barrels.
The extractor setup was very primitive! If you ever have a chance to examine a T Latch make sure to observe the extractors!
Perhaps Brian could photograph his for everyone to see.