David Koch’s Widow Looks to Sell Manhattan Apartment for $60 Million or MoreBy: E.B SolomontVIEWED 207 TIMESPublished: 2/11/2022Source: Mansion Global Featuring Leighton Candler: https://www.mansionglobal.com/articles/david-kochs-widow-looks-to-sell-manhattan-apartment-for-60-million-or-more-01644605945