I have this camera "Kodak Eastman Baby Briwnie" I want to know today's market prize for it

You could probably pick one up at Ebay for less than 10 Euro if you are lucky, prices could be up to 20 Euro.

The tiny Baby Brownie camera has a molded plastic body designed by Walter Dorwin Teague and has a simple folding frame finder for lining up the subject. The US made Baby Brownies, destined for export from 1936-1939, had a button for brief time exposures. Kodak UK Limited manufactured this camera for export only after World War II with the brief time button added only to these models from 1951 until it was discontinued in 1952. They gave one of these cameras free with each Lionel train in 1934 in a special box. The camera was introduced in 1934 and sold for $1.00. This camera had a Meniscus lens, rotary shutter, and used 127 film that produced a 1 5/8” x 2 ½” negative. There is no record of how many were made but it’s safe to say in the millions. The camera is selling for $15.00 to $35.00 depending on condition.