{
  "slug": "why-postal-history-enabled-commerce",
  "version": 1,
  "summary": "A reliable postal network turned distant strangers into accessible customers, expanding the trading radius.",
  "mechanism": "postal-network-market-radius",
  "layout": "flow",
  "nodes": [
    {
      "id": "n1",
      "type": "person",
      "label": "Seller",
      "x": 70,
      "y": 54,
      "w": 162,
      "h": 162,
      "detail": "fixed location"
    },
    {
      "id": "n2",
      "type": "envelope",
      "label": "Posted Letter",
      "x": 296,
      "y": 58,
      "w": 82,
      "h": 82
    },
    {
      "id": "n3",
      "type": "zone",
      "label": "Postal Route",
      "x": 296,
      "y": 172,
      "w": 82,
      "h": 82,
      "detail": "expanding reach"
    },
    {
      "id": "n4",
      "type": "person",
      "label": "Distant Buyer",
      "x": 296,
      "y": 274,
      "w": 82,
      "h": 82
    }
  ],
  "relationships": [
    {
      "from": "n1",
      "to": "n2",
      "label": "sends"
    },
    {
      "from": "n2",
      "to": "n3",
      "label": "travels via"
    },
    {
      "from": "n3",
      "to": "n4",
      "label": "reaches"
    }
  ],
  "animation": {
    "style": "assemble",
    "duration": 700,
    "stagger": 60
  },
  "fig": "FIG. / THE NETWORK THAT TURNED STRANGERS INTO CUSTOMERS",
  "presentation": {
    "style": "vignette",
    "hero": "n2",
    "support": [
      "n1"
    ],
    "icon": "envelope",
    "label": "Posted Letter",
    "tilt": 0
  },
  "illustration": {
    "concept": "Regional map with eight town nodes connected by post road lines; envelope moving along route from merchant town toward distant buyer town",
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