1864, Napoleon Empire dentelé 20c blue x 2 and 40c orange on COVER FRONT (80c tariff) tied by ROULEAU DE GROS POINTS alongside octagonal LEVÉE EXCEPTIONNELLE date stamp ”3é / 28 Nov 64” indicating the 3rd échelon. 20c postage and 60c late fee for the 3rd levee. ONLY VERY FEW COVERS ARE RECORDED showing the spectacular usage of the rouleau de gros points on the perforated issue in combination with scarce 3é Levee exceptionelle. Catalogued in the 2009 Maury at 3000€. THIS IS THE ONLY KNOWN PIECE TO US THAT BEARS THIS RARE COMBINATION.