A wooden(?) board with supplementary information, which Lothian use (or used?) in various ways. Buses had either a holder on the front panel on the outside of the bus, between the headlights, or in the front windscreen.
...highlighting tourist locations at peak periods...
Lothian Gemini 779 is seen resting at the Hyvots Bank terminus of route 11. It is one of a growing number of this series repainted into traditional Edinburgh colours which these vehicles carry particularly well. The 11 can trace its 'roots' back to tramway days when tram 11 worked between...
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...or special events...
With a 2pm kick-off at Murrayfield Lothian's staff were well organised to provide extra services for a couple of hours from lunch time so that fans could arrive in plenty of time. Additional buses were required for routes to both sides of the stadium, at Balgreen and Corstorphine and Lothian...
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...or express service stopping patterns
This bus service which has a thirty minute daytime frequency links Penicuik (south of the city) with Prestonpans, East Lothian. Some of the route limited stop. Lothian Buses' longest route 21.71 miles. Regent Arch, Stamp Office, Balmoral Hotel behind. From 23 Apr 2017 destination cut back from...
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Some seemed to appear for long periods (e.g. to advertise that a service now went to a new housing estate or supermarket), others would be used at key times (e.g. 25s and 34s had "Heriot-Watt Univ" tramboards on open days and on the first few weeks of term), to display a destination or clarification that wasn't on the blind, or to reinforce limited stop patterns (e.g. "X25 - NON STOP The Exchange to Sighthill Colleges").