I got this Windsor yesterday, as part of a three-bike deal. Of the three bikes (the other two are here and here), this is the only one I know a little bit about. Windsor was one of the brands of the 'Groupe Gentil' who were the makers of 'Alcyon', one of the great names in cycling in pre-war France.

Apart from the brand name, however, I know nothing about it. Any further information would be greatly appreciated.