During the relevant time there were two predominant layouts for the number key row: “typewriter-paired”, which is more or less same as the one used today and “b

During the relevant time there were two predominant layouts for the number key row: “typewriter-paired”, which is more or less same as the one used today and “bit-paired” where the symbols had the same order as they have in ASCII (ie. pressing a number key while holding shift produces a character represented by that number's ascii codepoint minus 0x10)