1. Letters patent ganted to Michael Wigglesworth of Massachusetts for the invention of the new and useful improvement in rope making Collection: Images from the Rare Book and Manuscript Collections Location: Philadelphia, Philadelphia, Pennsylvania, United States Date: 1799 Format: Image Agent: Unknown
2. Letters patent ganted to Michael Wigglesworth of Massachusetts for the invention of the new and useful improvement in rope making Collection: Images from the Rare Book and Manuscript Collections Location: Philadelphia, Philadelphia, Pennsylvania, United States Date: 1799 Format: Image Agent: Unknown
3. Letters patent ganted to Michael Wigglesworth of Massachusetts for the invention of the new and useful improvement in rope making Collection: Images from the Rare Book and Manuscript Collections Location: Philadelphia, Philadelphia, Pennsylvania, United States Date: 1799 Format: Image Agent: Unknown
