I have 2 one is from 2011 and other 2014. Same mug.

The product is a 2011-2014 Starbucks Green Siren Logo Ceramic Travel Mug, featuring a white color and a capacity of 12 oz. This collectible tumbler showcases the iconic Starbucks branding and is themed around coffee and tea. Made in China, this original piece is a unique addition for collectors interested in coffee and tea memorabilia. With its vintage design and authentic Starbucks logo, this ceramic travel mug is a must-have for any coffee enthusiast looking to add a piece of Starbucks history to their collection.