{"@context":"http://iiif.io/api/presentation/2/context.json","@id":"https://edisondigital.rutgers.edu/iiif/2/D8732ABD/manifest","@type":"sc:Manifest","label":"[D8732ABD], Letter from John H Vail to Thomas Alva Edison, August 18th, 1887","thumbnail":{"@id":"https://edisondigital.rutgers.edu/files/medium/D8732ABD/eo0816.jpg","@type":"dctypes:Image","format":"image/jpeg","width":746,"height":959},"license":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":"Provided by The Thomas A. Edison Papers at Rutgers University","related":{"@id":"https://edisondigital.rutgers.edu/document/D8732ABD","format":"text/html"},"seeAlso":{"@id":"https://edisondigital.rutgers.edu/api/items/43452","format":"application/ld+json"},"metadata":[{"label":"Title","value":"[D8732ABD], Letter from John H Vail to Thomas Alva Edison, August 18th, 1887"},{"label":"Editor's Notes","value":""Is there any possible method whereby we can arrange to dispose of the feeder equalizers in our central stations. ## The cost of these equalizers in stations of modern size is about $250. per feeder, and in stations like New York, Philadelphia and Chicago, they will be between $800. and $850. per feeder. This runs up the expense to between $7000. and $12000. on these large stations. ## In addition thereto, a great deal of valuable space is occuppied by the feeder equalizers which are very cumbersome and unsightly. ## I thought that perhaps you might have some method in mind which would enable us to overcome this difficulty, and at the same time, preserve careful equalization of pressure.""},{"label":"Author","value":"Vail, John H"},{"label":"Recipient","value":"Edison, Thomas Alva"},{"label":"Date","value":"1887-08-18"},{"label":"Type","value":"Letter"},{"label":"Subject","value":["Financial operations (companies and organizations)","Central stations","Cables, feeders, and other exterior elements"]},{"label":"Folder/Volume ID","value":"D8732-F"},{"label":"Microfilm ID","value":"119:839"},{"label":"Document ID","value":"D8732ABD"},{"label":"URL","value":"https://edisondigital.rutgers.edu/document/D8732ABD"},{"label":"Rights","value":"Thomas Edison National Historical Park"},{"label":"Publisher","value":"Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University"},{"label":"Timestamp","value":"18 August 1887"},{"label":"Has Version","value":"Archive.org Viewer, Microfilm Series Reel 119"}],"sequences":[{"@id":"https://edisondigital.rutgers.edu/iiif/2/D8732ABD/sequence/normal","@type":"sc:Sequence","label":"Current Page Order","viewingDirection":"left-to-right","canvases":[{"@id":"https://edisondigital.rutgers.edu/iiif/2/D8732ABD/canvas/p1","@type":"sc:Canvas","label":"1","thumbnail":{"@id":"https://edisondigital.rutgers.edu/files/medium/D8732ABD/eo0816.jpg","@type":"dctypes:Image","format":"image/jpeg","width":746,"height":959},"width":746,"height":959,"images":[{"@id":"https://edisondigital.rutgers.edu/iiif/2/D8732ABD/annotation/p0001-image","@type":"oa:Annotation","motivation":"sc:painting","resource":{"@id":"https://edisondigital.rutgers.edu/iiif/2/225517/full/746,959/0/default.jpg","@type":"dctypes:Image","format":"image/jpeg","width":746,"height":959,"service":{"@context":"http://iiif.io/api/image/2/context.json","@id":"https://edisondigital.rutgers.edu/iiif/2/225517","profile":"http://iiif.io/api/image/2/level2.json"}},"on":"https://edisondigital.rutgers.edu/iiif/2/D8732ABD/canvas/p1"}]}]}]}