{
  "fileFormatID": 2315,
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  "version": "4",
  "formatDescription": "Harvard Graphics (originally named Harvard Presentation Graphics) was a presentation and vector graphics program, used mainly on the MS-DOS platform.",
  "releaseDate": null,
  "binaryFileFormat": null,
  "formatNote": null,
  "lastUpdatedDate": "24 Oct 2021",
  "formatProvenance": "This format can be identified via a container signature in DROID version 6 or later. The PRONOM database cannot currently represent container signatures.",
  "formatSourceDate": "24 Oct 2021",
  "formatDisclosure": null,
  "formatEnvironment": null,
  "formatRisk": null,
  "formatAliases": null,
  "formatTypes": "Presentation",
  "formatFamilies": null,
  "identifiers": [
    {
      "identifierText": "fmt/1492",
      "identifierType": "PUID"
    }
  ],
  "internalSignatures": [],
  "externalSignatures": [
    {
      "externalSignature": "pr4",
      "signatureType": "File extension"
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  ],
  "relationships": [],
  "containerSignatures": [
    {
      "containerType": "OLE2",
      "id": "55000",
      "description": "HGW Presentation",
      "files": [
        {
          "path": "HgwPrsData",
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            {
              "subSequences": [
                {
                  "position": "1",
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                  "sequence": "DC FE"
                }
              ],
              "reference": "BOFoffset"
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          ]
        }
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}