"chalked" meaning in English

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      "expansion": "chalked",
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  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
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      "examples": [
        {
          "ref": "1960 June, “Talking of Trains: Week-end diversions”, in Trains Illustrated, page 323",
          "text": "[...] what still aggravates the traveller is that he rarely learns that his week-end train has been re-scheduled until he arrives at the main station to begin his journey and catches sight of a chalked notice in the concourse.",
          "type": "quotation"
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      ],
      "form_of": [
        {
          "word": "chalk"
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      "glosses": [
        "simple past and past participle of chalk"
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          "chalk#English"
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      "tags": [
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  "word": "chalked"
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      "expansion": "chalked",
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  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
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          "ref": "1960 June, “Talking of Trains: Week-end diversions”, in Trains Illustrated, page 323",
          "text": "[...] what still aggravates the traveller is that he rarely learns that his week-end train has been re-scheduled until he arrives at the main station to begin his journey and catches sight of a chalked notice in the concourse.",
          "type": "quotation"
        }
      ],
      "form_of": [
        {
          "word": "chalk"
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      "glosses": [
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