S&D CFE ACT Civil aviation air rescue serviceI think this might be an export order. In 1970s and 80s British companies were still exporting this kind of thing. Not sure it is a Shelvoke chassis but likely to be. CFE probably bodied very few crash tenders. There is only one on this site sse

Late Alastair Collins collection - used with permission.
Picture added on 18 June 2020 at 15:32