The sign is massive, almost 6 feet in height and 87 feet in length.
It is definitely readable with the naked eye from the top of the Ward Bakery Building - about a mile from downtown.
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First National Bank (headquartered in nearby Hermitage PA) sold their own building, the 224 foot 16-story Metropolitan Tower to Lou Frangos in 2007 (link to press release), shifting itself from the owner to a tenant.