Scott 1131 mint 4c - St. Lawrence Seaway - Used - nice details showing through a light cancellation. Exact stamp imaged.
Scott 1131 mint 4c - St. Lawrence Seaway, 1959 Commemorative Stamps. representative stamp imaged.
Scott 1131 mint 4c - St. Lawrence Seaway, 1959 Commemorative Stamps. representative stamp imaged.