{"meta":{"version":"2.1","_links":{"self":{"href":"https://api.vam.ac.uk/v2/object/O1796214"},"collection_page":{"href":"https://collections.vam.ac.uk/item/O1796214/"}},"images":{"_primary_thumbnail":"https://framemark.vam.ac.uk/collections/2026PL6701/full/!100,100/0/default.jpg","_iiif_image":"https://framemark.vam.ac.uk/collections/2026PL6701/","_alt_iiif_image":[],"imageResolution":"low","_images_meta":[{"assetRef":"2026PL6701","copyright":"© Victoria and Albert Museum, London","sensitiveImage":false}]},"see_also":null},"record":{"systemNumber":"O1796214","accessionNumber":"RPS.440-2025","objectType":"Photograph","titles":[{"title":"Airscrew Sound Wave","type":"generic title"}],"summaryDescription":"","physicalDescription":"A mounted black and white photograph capturing a sound wave produced by an aeroplane propeller.","artistMakerPerson":[{"name":{"text":"Hilton, W.F.","id":"AUTH406268"},"association":{"text":"photographer","id":"AAT25687"},"note":""}],"artistMakerOrganisations":[],"artistMakerPeople":[],"materials":[{"text":"photographic paper","id":"AAT14190"}],"techniques":[{"text":"photography","id":"AAT54225"},{"text":"gelatin silver process","id":"AAT139114"}],"materialsAndTechniques":"gelatin silver print","categories":[{"text":"The Royal Photographic Society","id":"THES281081"},{"text":"Photographs","id":"THES48910"},{"text":"science","id":"THES48898"}],"styles":[],"collectionCode":{"text":"DOP","id":"THES291628"},"images":["2026PL6701"],"imageResolution":"low","galleryLocations":[{"current":{"text":"LVLF","id":"THES49656"},"free":"","case":"MB005","shelf":"BY005","box":"XRP 299"}],"partTypes":[[{"text":"photograph","id":"AAT46300"}],[{"text":"gelatin silver print","id":"AAT128695"}]],"contentWarnings":[{"apprise":"","note":""}],"placesOfOrigin":[],"productionDates":[{"date":{"text":"ca. 1938","earliest":"1933-01-01","latest":"1942-12-31"},"association":{"text":"photographed","id":"x30151"},"note":""}],"associatedObjects":[],"creditLine":"The Royal Photographic Society Collection at the V&A, acquired with the generous assistance of the National Lottery Heritage Fund and Art Fund","dimensions":[{"dimension":"Height","value":"41","unit":"cm","qualifier":"","date":{"text":"","earliest":null,"latest":null},"part":"image","note":""},{"dimension":"Width","value":"50","unit":"cm","qualifier":"","date":{"text":"","earliest":null,"latest":null},"part":"image","note":""}],"dimensionsNote":"","marksAndInscriptions":[],"objectHistory":"This photograph is assembled along with 18 other photographs in a box of objects relating to scientific experiments  photographing sound waves by W.F. Hilton.  Along with the photographs is ephemera relating to the production of the images, including a personal letter; reproduction of articles on the photographs and eight glass negatives.","historicalContext":"","briefDescription":"Photograph by W.F. Hilton, 'Airscrew Sound Wave', gelatin silver print, ca. 1938","bibliographicReferences":[],"production":"","productionType":{"text":"","id":""},"contentDescription":"","contentPlaces":[],"associatedPlaces":[],"contentPerson":[],"associatedPerson":[],"contentOrganisations":[],"associatedOrganisations":[],"contentPeople":[],"associatedPeople":[],"contentEvents":[],"associatedEvents":[],"contentOthers":[{"text":"experiments","id":"THES393264"},{"text":"aeroplanes","id":"AAT212616"}],"contentConcepts":[],"contentLiteraryRefs":[],"galleryLabels":[],"partNumbers":["RPS.440-2025"],"accessionNumberNum":"440","accessionNumberPrefix":"RPS","accessionYear":2025,"otherNumbers":[{"type":{"text":"Science Museum Group accession number","id":"THES275235"},"number":"2003-5001/2/24735"}],"copyNumber":"","aspects":["WHOLE"],"assets":[],"recordModificationDate":"2026-05-27","recordCreationDate":"2025-02-10","availableToBook":false}}