Chubb 4L69 and 4L70 Cylinder Drawback lock
The Chubb Drawback locks have been discontinued please See Union 1332 and 1334 Cylinder drawback lock http://www.locktrader.co.uk/Union-1332-and-1334-Cylinder-drawback-lock.html
Chubb 4L69 Case Size 92mm - Union 1332
Chubb 4L70 Case Size 73mm - Union 1334