<https://archiveshub.jisc.ac.uk/data/gb206-msdep.1978/4>
<http://schema.org/about>
"Yorkshire Lubricating Oils and Grease Trades' Association"
<https://archiveshub.jisc.ac.uk/search/archives/675efbd6-bce0-3d37-9a87-141ec6ed2219>