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BrickLink - Part 2917pb02 : LEGO Train Front Sloping Top with Yellow Submarine on Blue Triangle Pattern on Front and Both Sides (Stickers) - Set 6557 [Train] - BrickLink Reference Catalog
BrickLink - Part 3479pb04L : LEGO Tail 4 x 2 x 2 with Yellow Submarine on Blue Triangle Pattern on Left Side (Sticker) - Set 6441 [Tail, Decorated] - BrickLink Reference Catalog
Set 21306-1 : Yellow Submarine [LEGO Ideas] [BrickLink]
Review: 21306 The Beatles Yellow Submarine | Brickset: LEGO set guide and database