- Thomson, John, 19th cent
- Digital Commonwealth
- Boston Public Library
- Printed by George Ramsay for John Thomson and Co
Relief shown by hachures. Hand colored in outline. Appears in the author's New General Atlas. Edinburgh: Printed by George Ramsay for John Thomson and Co., 1817. Drawn & engraved for Thomson's New general atlas, 1816.
- Central America--Maps
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