{
  "comments": {
    "new": "Volume Label: CH4"
  },
  "ring_codes": {
    "new": "57134672/CBS02/19SILBER-D2 DO 21 IFPI LB 45 IFPI 07K6\n57134671/CBS01/19SILBER-D2 D 22 IFPI LB 45 IFPI 07K5",
    "old": "57134672/CBS01/19SILBER-D2 DO 21 IFPI LB 45 IFPI 07K6\n57134671/CBS01/19SILBER-D2 D 22 IFPI LB 45 IFPI 07K5"
  }
}