welcome to the forum, i sent you an e-mail on the W meaning they were built in 1981. i don't know why it says 11's on the instructions. in the early years up to 1974 they made vertical cornwalls that they called 11's so they might have paper work left over from then. somebody will chime in with the correct answer.
2 k-horns (wo) - 2 belles (or) - 2 single belles (wo) - 2 lascalas - 4 cornwall 3's (cl) and a heresy 3 (cl) - 2 ramblin rose cornwalls - 6 heresys (wo) - 2 H-SM heresys in birch raw - rsw-15 - sub-12 - velodyne dls 5000
Sunfire TGA 200/5 & TGP-5
just added a new set of WF-35's with the XW-300 sub
Russ