Robert Plant Signed Dudley sport centre Poster

A piece of a Dudley Social poster which has been signed by Robert Plant in black felt-tipped pen.
The reverse of the poster features text saying 'Every Wednesday Eyes Down 8.15, Star Prizes, At The Social Club Dudley Sports Centre.'
This item comes from the personal collection of John Weston, who together with his twin brother Sid Weston co-founded and ran the bar at JB's Nightclub in Dudley, one of the Midlands' longest-running and best-loved live music venues. Over several decades John built up close friendships with many of the acts who played JB's, and it was through these first-hand relationships that he built his collection of autographs and memorabilia over the years. 
The autograph dates to the late 1970s/early 1980s
The poster measures 25.3 x 22.3 cm with the autograph spanning across 21cm of the poster
The condition is very good +