The original 3-speed AW-NIG was designed in Nottingham in ~1984 for the Columbia Bicycle company. This hub did not have the actuator plate. An actuator plate made its first appearance in the 1988 AWC-NIG hub. If you have an old AW-NIG from the 1980s or 90s, probably best to not backpedal in high gear!
Despite being used in the AW-NIG & SRF3 (2001-present), the StAr, Sprinter, Summit and (W) five-speeds, and the ill-fated 7-speed, the actuator plate is shown but not identified on the factory exploded parts diagrams. I don't know how universal this part is; the one used in the freewheel 3-speed hubs is an HSA470.
Last edited by tcs; 01-20-14 at 10:42 AM.