Scottish Region map with British Rail version of name, so presumably from around mid-sixties as this shows lines including Killin Branch etc which had closed by the later sixties. UK buyers only.
BRITISH RAIL (SCOTLAND & ISLE OF MAN) NETWORK ATLAS & TRACK DIAGRAMS BOOK (2001)
BRITISH RAIL (SCOTLAND & ISLE OF MAN) NETWORK ATLAS & TRACK DIAGRAMS BOOK (2017)
BRITISH RAIL (SCOTLAND & ISLE OF MAN) NETWORK ATLAS & TRACK DIAGRAMS BOOK (1993)