Amber Owl duette - each owl marked Coro Craft on the back and is a well known design from Albert Katz. The duette frame is marked Coro Duette in script and patent number 1798867. This patent number is from 1931. The Duette comes apart from the frame leaving 2 separate clip pins. The clasp and clips are all in excellent working condition. This assembled duette measures 2" long and about 1 7/8" wide. There is some foil loss to the back of the large amber rhinestone eyes and some light tarnish on the pin stem.