 The 1979 letter opposing the Flatbush eruv alleges that Rabbi Henkin signed the 1962 letter against the Manhattan eruv.Yet, his name is not on it, and it is on the 1960 letter in favor.The prevailing view on this matter appears to be that of Rabbi Henkin's, which may be derived from the fact that as of June 2007, the East Side portion of the internal Manhattan Eruv was completed, offering an eruv within Manhattan to Orthodox Jews living on the East, Upper East, and Upper West Sides.