1931 - 1940 Windsor

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1931 - 1940 Windsor very old road bike (1900 - 1930?) and was hoping to find out its aproximate age. It is black with the name Windsor painted beautifully all over it and ornate lugwork. the wheels are steel rimmed with a 3spd x 1spd flip hub(light vew, I think) on the rear. tyres are Michelin World Tour 32-630 (27 x 1 1/4.)Inscribed on the gears at the rear is 'Merveille Marquee Derosee made in France. the brakes are M something Speedoler and are odd looking sidepulls. many of the parts in shape seem to be from around the 1920's. any information would be greatly apreciated, I also have other photo's available on request