I believe (correctly or not!) that those marked Ferragamo's Creations date from before Salvatore Ferragamo's death in 1960.
Your shoes have a softly pointed toe and true stiletto heel so I would place them in the mid to late 50's. Although Ferragamo was one of the leaders in the stiletto heel, there are adverts for this shape of shoe by Ferragamo in Vogue up to 1959.
I can't see enough clearly to tell but the lace may be tarnavelle lace, which is specific to Italy.