2 pages on 1 sheet Letter from Andrew Vivian to Richard Trevithick concerning patent and business controversies
3 pages on 1 sheet The letter describes Vivian's attempts to secure a joint patent for the high pressure steam engine of 1802
3 pages on 1 sheet The letter concerns news of Trevithick's family, local gossip and business affairs
2 pages on 1 sheet Letter describing the death of Vivian's son, Andrew and his own attempts to sell his share in the joint patent of 1802