| General_note: "taken with a sector of 54 inches Radius..." shows full extent of avenues in profile |
| Extent: 1 manuscript map on 3 separate sheets |
| Added_date: 1820 |
| Dimensions: 58 x 268 cm. (total) |
| Local_note: accompanied by: 3872-A: 7 pp. of calculations (unbound, numbered pts. 1-7) on each of the five avenues, concluding with the statement, "the preceding elevations above medium tide is correct for map subject to a correction of curvature / 26 Decr 1820 / J.R.jr." |
| Medium: black ink, black pencil and color wash on paper |