An interesting old advert from Melody Maker of the 4th April, 1970. This marks the moment that producer Joe Boyd went back to America, leaving the business to another firm.

The text says

Werewolf management & agency | now representing all WITCHSEASON artists | The Incredible String Band | Fairport Convention* | Fotheringay (Sandy Denny, Trevor Lucas, Pat Donaldson, Gerry Conway, Jerry Donahue) | John & Beverley Martyn | Nick Drake | Chris McGregor's Group and Big Band | Dudu Pukwana and the Spear.
All enquiries to Huw Price, [...] Witchseason Warlock Werewolf | 83 Charlotte Street, London, W.1
(* Shared with Nems Ltd. at this time)