Cautions Against Fraud (1806)

John Trusler's London Adviser and Guide: Containing Every Instruction and Information Useful and Necessary to Persons Living in London (1806) is a wealth of fascinating information. Indeed, rather rashly, the title page not only lists what the book covers, but boasts as follows:



My favourite, though, is probably the list of 'Cautions Against Fraud':





Good advice, all, especially 10 and 35. 12 puzzles me a little, though.