Ace Books began its second G-series in 1964, and it ran until 1968, with serial numbers from 501 to 766. There had previously been nine titles with a G prefix published as part of the D/G/S-series. These nine are: * G-352 NA Fire And Morning (1959) * G-371 NA Theodor Plievier Berlin (1959) * G-376 NA The Big Company Look (1959) * G-382 NA C. T. Ritchie Willing Maid * G-390 NA Long Pig * G-440 NA Letter Of Marque (1960) * G-454 NA Ride East! Ride West! (1960) * G-480 WE The Strong Men (1960) * G-500 WE The Bad Man of the West (1961)