The question remains whether anyone will be able to read a 350-foot-wide billboard:

The two-block-long facade of the James A. Farley Post Office is due to become a giant billboard.

Empire State Development Corp. is accepting bids from ad firms that would put up displays on scaffolding now in place for exterior restoration work.

The canvas being offered on the landmark building — from March 1 until the scaffolding comes down next fall — is 350 feet long and 60 feet high.