This rare find has sold for up to €150 on this site and other auction sites and is a Vintage Reflex hammer marketed by BAYER. From research it appears to be dated from late 50's, early 60's and is made of Brass and clearly marked with BAYER brand on one end. The crocodile / alligator is finely detailed, as shown on the pictures, and is in excellent condition for its age although there is a small scratch on the hammer end which I have not tried to repair or polish out.