1981-04-21 The Embassy, London, England, UK
The occurrence of this concert has been first discovered in August 2016 by yours truly and Michael Rose, as administrators of the Facebook group Depeche Mode Classic Photos And Videos. Through Facebook's Graph Search, we found a photo album on the Facebook profile of a person named Roz Bea, who seems to have collected several clippings about concerts that happened at The Embassy, including one by Depeche Mode. Mr. Rose has then dived into his extensive magazine collection, and managed to find "fairly conclusive evidence" that this concert took place on April 21st 1981.
All three clippings only focused on the (then-)well-known names that attended the gig, which were: Charlie Harper, Gary Numan, Department S, Nicky Tesco, Rose Tattoo, Scars, Holly And The Italians, Rusty Egan, The Yachts, Tony Hadley, Ramona Carlier, Clem Burke, Dave Vanian, Captain Sensible, members of Siouxsie and the Banshees, members of Spizzles, and Bethan Peters.