In 1970 they added a simple map showing public transport stops around Gara de Nord in Bucharest, along with a description of their routes, and also little rectangles in the station column, of the kind that featured prominently in old Hungarian timetables, which I _think_ signify which side of the line the station building was on. This was short-lived, however. In 1971 they also added an extra map and table of all stations in Bucharest. The main line map also started showing double-tracked (again) and electrified lines.
From 1974, the table numbers, names, and fast trains (but only the numbers, I guess they were still trying to save *something* on color printing) were printed in magenta (I think).
Also a prime example of Romanian railway improvement weirdness - according to the maps, Craiova-Timișoara was one of the first routes to be electrified… but then it took the better part of a decade for the wires to reach Bucharest, even as three other trunks got them.
https://timetableworld.com/ttw-viewer.php?token=97545719-d7fc-4ec1-b64c-2534804b2ea4
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