The Society of Antiquaries of Scotland is the senior antiquarian body of Scotland, with its headquarters in the National Museum of Scotland, Chambers Street, Edinburgh. The Society's aim is to promote the cultural heritage of Scotland.
The Society was established in 1780, and is the oldest antiquarian society in Scotland, and the second-oldest in Britain after the Society of Antiquaries of London.
More information on the Wikipedia page [1]
The website is [2]