This brooch is missing some of the green and white enamel. It appears to be very old, possibly antique. I believe over time someone replaced the pin back with a newer gold tone one. The silver under the enamel is sterling silver.
Pictured is exactly what you will receive. See photos for measurements.
Please look at the photos closely as I try to take pictures of any flaws. Please expect normal wear for vintage/preowned items. Some vintage jewelry may have patina, loss of color tone, scratches or any other common vintage jewelry wear. Cleaning is up to the buyer.