When you visited me recently, I stated emphatically that in my opinion an eruv in Manhattan is osur as indicated in my sefer and as I also signed the p’sak din of the Agudas Harabonim which ahsers this eruv, although I am not in a position to prevent the eruv. Therefore, do not cite my name as one upon whom you rely for a heter in this matter. Rabbi Moshe Feinstein