I have been putting together some of the wiki pages on warning signs
and was wondering if anyone can help with the dates of what was changed or added to TSRGD after 1964.
Such as when did the junction signs change to show priorities.
And the same for the merge signs - I know this was slightly later since the 1978 Highway Code shows the new junction sign but old merge ones.
And new warnings that have been added, toads, wildfoul, tractors, queues likely, slow lorries etc.
When did the snowflake sign for ice and snow replace the worded versions, it appears in the 96 HC but isn't shown in the 93 version?