I have a 1970's Sports Standard and it did come with the Brooks vinyl saddle, as did quite a few other bikes in the line up from that era. The regular Sports had the B-72, the Superbe a B-66. I like the vinyl saddle for short rides and if the bike is going to parked outside much. FWIW the one on my Sports Standard has survived many years of commuting and being parked at bike racks outside, it does have a couple of small splits at the seams.
Aaron
