Vintage Fanfares Silver Slingbacks 1970's Disco Shoes Women's 7.5

After researching the Fanfare shoe logo, my best guess is that these shiny disco shoes are likely from the 1970's. The material around the heel is coming unglued a bit. Other than that, these are in great shape considering the age. These shoes are approximately a size 7.5. I measured the foot bed at 9.5". I wear a size 9 to 9.5 and I can fit my foot in them, quite snugly (not a Cinderella fit, for sure). I'd say these would fit a shoe size 8 comfortably. Just a guess!