This is a Denis Wick 5L tuba mouthpiece, made in England. It has a full gold-plated finish. The 5L has the smallest cup diameter in the series, making it ideal for E♭ and F tubas. It should also suit students with smaller embouchures. It has been carefully stored and is in good condition, with minor scratches. There is no peeling or fading of the gold plating. Due to the rising price of gold, gold-plated mouthpieces have become surprisingly expensive. I don't think you'll find one at this price, so please consider purchasing it. Thank you for looking.