Yes Ralph...they are donated by locals. Boston has 75 of them. Most will not make it through the weather...but they want them to at least keep honest people from wheeling them down the street.
From it's website "Touring internationally since 2008, ‘Play Me, I’m Yours’ is an artwork by British artist
Luke Jerram. Reaching over three million people worldwide – more than 1,000 pianos have already been installed in 37 cities across the globe, from New York to London, bearing the simple instruction ‘Play Me, I’m Yours’. "