1977

SG649 with "light area in trees" (BW769, Mc1)

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SG649 with "green curved line on C of CRICKET" (BW769, Mc5)

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SG649 with weak lettering. Unlisted

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SG653 with "black dot on building over 27" (BW773f)

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SG654 with "red dots in orange band" (BW774 Mc11)

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