Thanks. Love it.@Blackadder: It's the Featherweight series shape 123. As you can see in the picture, it's less imposing than the 83. Stanwells are not uniform in size. My 83 weighs 49g and the chamber is 20x40mm. The 123 weighs 39g and its chamber is 18x38mm. Both are comfortable, but the 83 can feel a bit heavy sometimes.
Here's a picture of 83 vs 123.