| Issuer: Laos
Issue: International Letter Writing Week 1966 Date: 9/7/1966 (1966 sheets) Block 1 (4, 2 x 2) 1, 1: 5k d=letter writing 1, 2: 20k d=letter writing 2, 1: 40k d=letter writing 2, 2: 45k d=letter writing |
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