CATALOG EDITIONS / Q23

Supersession chain

Memorandum

One became two before T-208. Three became four before R-441. Two ladders share a wall; their rungs must not be exchanged.

{
  "carbon_chain": [
    1,
    2
  ],
  "freight_chain": [
    3,
    4
  ]
}

Related records

• Q44 · Accepted instrument revision receipt
• Q08 · Superseded seal register
• Q24 · Memo filed in the wrong sleeve

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