David Koch’s widow looks to sell 740 Park Ave. duplexVIEWED 290 TIMESPublished: 2/14/2022Source: The Real Deal Featuring Leighton Candler: https://therealdeal.com/2022/02/14/david-kochs-widow-looks-to-sell-740-park-ave-duplex/?utm_source=internal&utm_medium=widget&utm_campaign=feature_posts
