America, Starbucks You Are Here mug

Based on the bottom stamp details shown in the image (including the 14.2 fl oz / 420 ml volume markings and copyright year): ​You Are Here Collection (or You Are Here Series): This standard mug shape and base specification format (listing 14.2\text{ fl oz} / 420\text{ ml} alongside the standard copyright and manufacturing text) was heavily used for the You Are Here city, state, country, and holiday series released between 2013 and 2018. ​Core/Seasonal Merchandise Mugs: Starbucks also used this exact 14.2\text{ fl oz} / 420\text{ ml} base stamp for various standard core merchandise, holiday, and coffeehouse mugs released in 2015–2017 (such as their solid-color Siren logo mugs, metallic print mugs, or holiday tree collection mugs).