Announcing examinations for addressing machine operator, graphotype machine operator, addressing machine and graphotype operator, card punch operator (alphabetic), bookkeeping machine ojierator, $2,750 and $2,950 a year (grades GS-2 and 3). calculating machine operator, $2,730 $2,950 and $3,175 a year (grades GS-2, 3, and 4), telegraphic-typewriter operator, $2,959 and $3,175 a year (grades GS-3 and 4). operator (semiautomatic teletype equipment), bookkeeping machine unit supervisor $3,175 a year (grade GS-4), announcement 334.