£1.40 Industrial Archaeology No 5. Preston Mill£1.43 Postal History No 7. Postmark History. Blind perf
£1.43 Postal History No 5. Forces postal service. Phosphor flaw
booklet FN4 (A) pane UMFB28. Phosphor flaw, two stripes of phosphor down middle of rightmost 2 stamps. Left selvedge. Perfs short bottom.