Editor’s picks | The dizzying geometry of Sarah Morris’s Midtown — Crowne Plaza Hotel seems to stretch the 7ft-square canvas out of shape. It is one of a series of paintings of grid-like façades that the British-born, New York-based artist began in the late 1990s, exploring the tension between the street-level viewer and the towering metropolis View Lot Estimate: $60,000-80,000 until 18 July, Online | | This historiated initial F is from a choirbook made in central Italy around 1350. The letter begins the Latin phrase ‘Factum est silentium in caelo’ (‘There was silence in heaven’), the first line of a choral work describing the scene painted within the initial: Michael the Archangel’s battle with the dragon, from the Book of Revelation View Lot Estimate: £3,000-5,000 10 July, London | | Dom Pérignon 1973 is the superb product of what was a challenging year for French winemakers, with high temperatures all summer long. Yet the conditions seemed to suit the Chardonnay and Pinot Noir grapes used in Dom Pérignon, and recent tastings of the vintage have revealed lively notes of fruit, spice and toasted brioche View Lot Estimate: $500-700 until 23 July, Online | | It was with works such as Falls, painted in 2002, that the American artist Will Cotton made his name. His glossy, sensual, fantastical landscapes of cake and sweets attracted the attention of the pop superstar Katy Perry, and Cotton became artistic director of the video for her chart-topping 2010 single California Gurls View Lot Estimate: $20,000-30,000 until 17 July, Online | | Browse Auctions | |