P170 is assigned to 1836 and the second flag P48 to 1848 and 1852. P48 also appears in the signal painting.
Peruvian operated from Nantucket in 1818–1857, when broken up. Known owners include Reuben Starbuck, Gorham Coffin, Frederick Athearn and Henry Coffin. Agents included Christopher Mitchell & Co., Gorham and William B. Coffin, Frederick Athearn and Robert F. Gardner.
Keep the explicit scope label independent; no alias or company identity is inferred.