Perfins
| No. | Town | Firms | Initials | Years | |
|---|---|---|---|---|---|
| 01. | San Juan, PR | New York Puerto Rico Steamship Company | PRL | 1926 - 1932 | Pic |
| 02. | Fajardo, PR | Puerto Rico Light & Power Company | PR/RLP | 1922 - 1933 | Pic |
| 03. | Aguadilla, PR | Phillip & Company | SP/&Co | 1908 - 1912 | Pic |
| 04. | San Juan, PR | West Indian Oil Company | WI/Co | 1926 - 1954 | Pic |
Other United Sates perfins stamps
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Last update: 2018.12.27
