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|LEGO > System > Service Packs > Trains
) << 7 (1, 2, 3,4, 5
) >> 8 (1, 2, 3, 4
7 Train Signal with Ties was released in 1981. A Service Packs set for Trains, it contained two Train direction switches, a red Train signal post, and a 4.5V signal circuit-breaker bar.