Postage due. KPI P-2. 40 Sen in strip of 3 with sheet margin with perforation error ´bottom imperforated´

Postage due. KPI P-2. 50 Sen imperforated KPI 12A in block of 4 (3x), block of 6, block of 12 and block of 16 (soft paper, largest block known), 1 rupiah KPI 13A as a single and in block of 4

RIAU. Collection of imperforated stamps (incomplete) as single and in block of 4 of type I, and type II in mint blocks of 4