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Continue to ChatNorth Yorkshire Moors Railway 1993 25p Anniversary of the First NYMR Working Party (U/M) https://www.grahamlandstamps.co.uk/shop/stamps/cinderellas/gb-railway-letter-labels/north-yorkshire-moors-railway/north-yorkshire-moors-railway-1993-25p-anniversary-of-the-first-nymr-working-party-u-m/