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Collection of letters from Andrew Vivian to Richard Trevithick

Letter from Andrew Vivian to his brother Captain Johnson Vivian

Collection of letters from Andrew Vivian to Richard Trevithick

Letter describing the death of Vivian's son, Andrew and his own attempts to sell his share in the joint patent of 1802

Letter from Andrew Vivian to Richard Trevithick concerning patent and business controversies

Letter concerning the performance of Cornish mine engines

The letter describes Vivian's attempts to secure a joint patent for the high pressure steam engine of 1802

The letter concerns news of Trevithick's family, local gossip and business affairs