Peru 1937 Pictorial 15c (Paseo de la Republica) imperf proof block of 6 in issued colour each stamp with Waterlow’s security puncture unmounted mint as SG 589
Peru 1937 Pictorial 15c (Paseo de la Republica) imperf proof block of 6 in issued colour each stamp with Waterlow’s security puncture unmounted mint as SG 589