Otto Piene, Artist of International Renown, Worked Quietly in Groton for 31 Years Thu, 03/28/2019 - 9:24pm Heraldgroton Otto Piene’s dynamic image of a horse on display at Fitchburg Art Gallery is on loan from a private collection. Otto Piene’s sketch of his Groton farmhouse and silos which he converted to studio space. The artist at work. Otto Piene Full text available to online subscribers only. If you are a current online subscriber, please click here to login. If you are not a current online subscriber, please click here to view our subscription options. If you are and online subscriber whose subscription has recently lapsed and you are having an problems accessing premium content, please resubscribe for free here: http://grotonherald.com/online-subscriptions. Thank you.