Postmark - Great Britain 1973 cover bearing illustrated slogan cancellation for Keep Fit at the Sportscentre (Harlow)
Postmark - Great Britain 1973 cover bearing illustrated slogan cancellation for Keep Fit at the Sportscentre (Harlow)
Postmark - Great Britain 1973 cover bearing illustrated slogan cancellation for Keep Fit at the Sportscentre (Harlow)