I have a pair of boots that I received from a friend 15 years ago. Ashamed to say that they made it to the back of my closet and hibernated until now. Does any one have any info on these boots? Designer, circa, etc. would be appreciated. There is a patent number on the bottom 431231 along with a stamp pitti palace Florence Italy. The inside tag reads Turin 795ZZ59. Thanks to anyone who can help.