Steam stops and safety valves. Philadelphia PA. 19th century stereosco...
Philadelphia stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who... Mehr
Steam stops and safety valves. Philadelphia PA. 19th century stereosco...
Philadelphia stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who... Mehr
Steam stops and safety valves. Philadelphia PA. 19th century stereosco...
Philadelphia stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who... Mehr
Steam stops and safety valves. Philadelphia PA. 19th century stereosco...
Philadelphia stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who... Mehr