It’s a Bruno Delgrange Partition, 16.5" with a 2A flap. The “Partition” part is indicated by the P in front of the seat size.
Delgrange flap sizing is relative to seat size, and the 2 flap is the standard length for a 16.5" saddle. The A indicates flap shape, which is “normal forward.” I don’t remember, off the top of my head, the length of the Delgrange #2 flap. My guess is about 12.75". If in doubt, measure on your own saddle.
The Partition is Delgrange’s semi-deep model and tends to run a little small in the seat, so if it’s marked 16.5", it’s going to ride closer to a 16". (Warning: that is very small, like a size normally used by 12-year-old kids or adults who are 5’0" or 5’1". So if you are not that size, or you’ve grown since you bought this saddle, think pretty seriously about moving up to something bigger.)
A reasonably close comp would be a CWD SE02 in 16" or 16.5" with a 1C or 2C flap. SE02 = CWD’s medium-deep seat model, roughly equivalent in depth to the Delgrange Partition. CWD seat sizes run fairly true, but sometimes they’re about 1/4" small depending on the model etc.
You’re bound to come back and ask what an “L” flap means in CWD, and it means “a straighter, not more forward angled, flap.” So a 2L would not be as forward as a 2C.
Happy shopping.
