Here’s a fun blast from the past. After reading our post last week on how the Jehovah’s Witnesses came to Brooklyn, a Brownstoner tipster sent us the 1969 letter mailed out by Witness President Nathan H. Knorr when the organization bought their largest buildings in Brooklyn Heights.

Posted to church members around the globe, the letter thanked everyone involved for helping purchase the former pharmaceuticals complex — which was promptly put to use as paper storage. The letter also mentions the installation of the now-iconic Watchtower sign.

Today, these buildings are some of the most valuable sites in Brooklyn. And a number of these same buildings just went up for sale last year.

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