English operator: Panoramio described at URL: https://web.archive.org/web/20161101000633/http://www.panoramio.com/photo/113274008...
[[Category:Oporto trams in {{Ta]] English operator: Panoramio described at URL: https://web.archive.org/web/20161021232900/http://www.panoramio.com/photo/56451238...
English operator: Panoramio described at URL: https://web.archive.org/web/20161011230631/http://www.panoramio.com/photo/1942933...
archive.org/web/20161023184523/http://www.panoramio.com/user/5760900?with_photo_id=56451206 operator: Panoramio described at URL: https://web.archive...
English operator: Panoramio described at URL: https://web.archive.org/web/20161011235704/http://www.panoramio.com/photo/9457197...
archive.org/web/20161020144247/http://www.panoramio.com/user/298492?with_photo_id=55495867 operator: Panoramio described at URL: https://web.archive...
English operator: Panoramio described at URL: https://web.archive.org/web/20161102051124/http://www.panoramio.com/photo/113273889...
archive.org/web/20161012074942/http://www.panoramio.com/user/1668787?with_photo_id=11917019 operator: Panoramio described at URL: https://web.archive...
English operator: Panoramio described at URL: https://web.archive.org/web/20161011175701/http://www.panoramio.com/photo/9456800...
panoramio.com/user/156183?with_photo_id=8766610 operator: Panoramio described at URL: https://web.archive.org/web/20161009212923/http://www.panoramio...
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