backward skip-wheel numbering machine
1Backward skip-wheel numbering machine — Нумератор с пропуском цифр при нумерации убывающими цифрами …
2List of Ace single volumes — Ace Books began publishing genre fiction in 1952. Initially these were mostly in the attractive dos à dos format, but they also published a few single volumes, in the early years, and that number grew until the doubles stopped appearing in about… …
