Part of the "Marte Ataca" (Mars Attacks, in Spanish) card series released in 1966, these cards are the counterpart to sets issued in the US. This rarer Spanish-language group contains a partial set of 29 cards. All PSA graded, and 24 of the 29 are the highest graded by PSA (POP 1). Additionally, cards #10, #41, #42, #50, and #52 are second highest in the population report. A great offering for collectors of rare or unusual sets.