{
  "title": "Lizzie A. Law",
  "era": "Photographed two-mast towbarge, 1907",
  "version": "1.2",
  "modelStatus": "Interpretive reconstruction; no original lines plan recovered",
  "detailLevel": "full",
  "units": "metres",
  "axes": {
    "up": "+Y",
    "bow": "-X",
    "starboard": "+Z"
  },
  "historicalDimensions": {
    "lengthFeet": 196.1,
    "beamFeet": 33.9,
    "depthOfHoldFeet": 13.9,
    "beamInferred": false,
    "holdDepthUnknown": false,
    "dimensionsSourceQuality": "Selected documentary baseline; see vessel research notes for length and beam conflicts"
  },
  "geometryReference": {
    "hullBowX": -29.885640000000002,
    "hullSternX": 29.885640000000002,
    "deckY": 4.65,
    "waterlineY": 3.35,
    "waterlineIsInferred": true
  },
  "bounds": {
    "min": [
      -29.94270235480753,
      0.0050000000000000044,
      -5.251360000000001
    ],
    "max": [
      29.985640000000004,
      28.65394309622133,
      5.251360000000001
    ]
  },
  "triangleCount": 56316,
  "trianglesByGroup": {
    "hull": 12950,
    "bulwarks": 9658,
    "fittings": 2940,
    "deck": 8512,
    "steering": 424,
    "anchors": 636,
    "deckhouses": 2152,
    "skylights": 60,
    "spars": 2000,
    "standing_rigging": 2256,
    "running_rigging": 336,
    "furled_canvas": 2640,
    "cargo_hatches": 180,
    "hatch_covers": 540,
    "deck_cargo": 9216,
    "ship_boat": 1816
  },
  "drawCalls": 53,
  "mastCount": 2,
  "supportsSails": false,
  "visibilityNodes": {
    "cargo": "deck_cargo"
  },
  "deployedSailCount": 0,
  "inferredFeatures": [
    "Underwater hull lines and draft",
    "Exact colors, fittings, hatch layout and rigging routes"
  ],
  "configurationCaveat": "The dated 1907 photograph guides the two retained masts, long cargo deck and low stern cabin. Her original middle mast and bowsprit had been removed around 1900. This is the later towbarge, not her earlier three-mast topsail rig. Deck load, hidden hull lines and fittings remain interpreted.",
  "revisedDate": "2026-09-10",
  "revisionNote": "Removed the rigid forward towline segment that read as a bowsprit; the photographed 1907 towbarge now has a plain stem. Historical evidence and illustration retained.",
  "documentedFeatures": [
    "Built at Port Huron in 1875, hull dimensions 196.1×33.9×13.9 ft. [Brendon Baillod — Lizzie A. Law history and dated 1907 photograph](https://www.baillod.com/shipwreck/keweenaw/law.html)",
    "The original three-mast topsail schooner lost its middle mast and bowsprit around 1900; the 1907 photograph shows two masts. [Brendon Baillod — Lizzie A. Law history and dated 1907 photograph](https://www.baillod.com/shipwreck/keweenaw/law.html)"
  ],
  "sources": [
    {
      "title": "Brendon Baillod — Lizzie A. Law history and dated 1907 photograph",
      "url": "https://www.baillod.com/shipwreck/keweenaw/law.html"
    }
  ]
}