I was looking at the 1960s resignalling notices for the Glasgow Suburban area, this was a mix of existing manual signalboxes and some new power boxes, in general, the existing manual signalboxes were equipped with MAS, manual points and ground disc signals, new boxes on the same route (e.g. Hyndland) were equipped with MAS, electrically worked points and two position light shunt signals, this mix survived until the centralization of signalling at Yoker in the late 1990s.
Jim