YSL Vintage Patent Spectator Pump

YSL Paris, made in Italy, vintage(Tom Ford era)black patent spectator pump with ivory trim is marked a size 8.5N. I normally wear a 7-7.5, am wide through the toe & narrow in the heel and these fit me well. When I measure the sole at the ball of the foot on the shoe, they are approximately 3” across, however my foot is approximately 3.5”across. So these have probably been stretched. The heel measures approximately 3”. They are in beautiful as-is condition with some creasing, a small glue spot and wear to sole. Please see images for detail. The interior has been cleaned/disinfected but does show some staining.