Steeleye Span, Carboot Rummagings, Imaginative Time Travel and Medievalism: Wanderings #46/52a - A Year In The Country
In terms of imagery, an album cover such as Steeleye Span's Below The Salt from 1972 goes the full (medieval) hog, although if you look back at photographs of them from the early 1970s, the medieval aspects are just part and parcel of an overall way of dressing that was equally post-1960s psychedelic gone more loose, a touch hippie and to a modern day eye appears to be style that wouldn't have been out of place worn by say a more hip children's television presenter from back when (which is said with affection, that's not a bad look).