In accordance to the Puerto Rico State Historic Preservation Office images found in the Puerto Rico State Historic Preservation website are public domain if they were photographs developed as part of an HPF Sub grant sponsored by their Office. This applies worldwide.
Description: To be used in images, found in the website of Puerto Rico State Historic Preservation whose photographs were developed as part of an HPF Sub grant which they sponsored.
Source:Puerto Rico State Historic Preservation Office, José Marull Especialista Principal en Propiedad Histórica; San Juan, Puerto Rico.
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(Original text) : {{Information |Description = Church San Carlos Borromeo of Aguadilla |Source = http://pdfhost.focus.nps.gov/docs/NRHP/Photos/84003124.pdf |Date = C. 1910 |Author = Junghanns Collection, General Archive...