Actually, that's not surprising. The Everything Vintage site has been constructed from three individual sites that have been merged into one, and I guess there are some urls that no longer exists.
This error will have been recorded, and if there is an obvious page that the url should direct to, it will be added.
In the meantime please use the search function on this page to try to find what you were interested in, or use these links to the different sections that the site is divided into - possibly one of them will help:
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