hello experts! No pictures today, i just wanted to ask you a guideline on how to date men's shoes in the 20th century. I Know the topic is as vaste as the ocean but are there symbols, shapes, heels that are an immediate sign of a decade? Men's styles are much more conservative and i' m quite confused when i have to date a shoe that doesn't undoubtly belong to a specific era (like for example a terry de havilland platform for men or a prada runway shoe). If you have books, blogs, articles to suggest me please do it. thanks in advance!