Valiant Summer Special / Valiant Holiday Special (1966, IPC)

Valiant Summer Special / Valiant Holiday Special ran for 15 issues (1966–1980). Valiant Summer Specials ran for 15 consecutive years with the majority titled "Valiant Summer Special". 2 were titled "Valiant Holiday Special; 2 had the cover title of "Valiant and TV21 Summer Special" and 1 was a "Valiant and Smash Summer Special". There were also 3 similar Specials titled "Lion and Valiant Special Extra" which can be found at https://www.comics.org/series/68610/