Bluet Paris photographs?

Question

There are vintage pictures with a mark in the corner that says "Bluet Paris" and then followed by a number. Were these photos used in advertisement or were they private photographs or perhaps printed in a series and sold for hanging? Where can I find more of these photos? I have searched all over Google and only come up with a type of flower.

For an example: http://img.photobucket.com/albums/v11/thelastflower/Colorized%20Pictures/manandwomaninpark.jpg

Thank you!

Answer 1

http://www.flickr.com/photos/lausanne/se...

here you gooo