Mason Mouse has taken a trip into York Minster's Great East Window! Executed in 1405-08, the window is a magnificent masterpiece and the largest expanse of medieval stained glass in Britain. It was a great pleasure to draw from it and spend hours exploring its wonderful details (I even found the engravings of a Burrows plumber/glazier from 1862!). Yesterday I met with the team at York Minster to learn about a new project, which I will enjoy developing over the coming months. It is always such fun to spend time with Mason.