Flashbacks is an insert set in 2005 Topps Heritage. The ten-card base set features events of significance from the 1956 baseball season and were inserted 1:12 hobby and retail packs. The set was fully paralleled by a seat relic set (inserted 1:96 packs), an autograph set (serial numbered to 25 copies each and inserted 1:6166 hobby and 1:6864 retail packs) and an autograph/seat relic set (also serial numbered to 25 copies each and inserted 1:6166 hobby and 1:6864 retail packs).