Selection indicating disks with unselected characters obscured by shaded areas on underneath disk

Claim 1

IN AN INDEXING CONTROL MEAND FOR AN EMBOSSING MACHINE: FRAME; A SHAFT ROTATABLY MOUNTED IN SAID FRAME; AN EMBOSSING DIE SUPPORTING DRUM ROTATABLY COUPLED TO SAID SHAFT; A CONTROL WHEEL SECURED TO THE OUTER END OF SAID SHAFT; AND A TRANSLUCENT MEMBER SECURED TO SAID FRAME AND DISPOSED IN CLOSE OVERLYING RELATION WITH RESPECT TO THE OUTER FACE OF SAID CONTROL WHEEL; SAID TRANSLUCENT MEMBER HAVING TWO ARCUATE ROWS OF CHARACTER IMAGES FORMED THEREON AND DISPOSED IN THE SAME SECTOR OF SAID MEMBER; SAID WHEEL HAVING ON ITS FACE TWO BACKGROUND FIELDS DEFINED BY SECTIONS OF ANNULI THAT HAVE EFFECTIVE RADII WHICH RESPECTIVELY CORRESPOND TO THOSE OF SAID TWO ARCUATE ROWS OF CHARACTER IMAGES; SAID WHEEL ALSO HAVING ON ITS FACE TWO INDEX POINTER MARKS RESPECTIVELY ASSOCIATED WITH THE SAID TWO ROWS OF CHARACTER IMAGES OF SAID TRANSLUCENT DISC WHHEREBY WHERE ONE OF SAID INDEX POINTER MARKS ON SAID WHEEL IS COOPERATING WITH ONE OF SAID ARCUATE ROWS OF CHARACTER IMAGES ON SAID TRANSLUCENT MEMBER ONE OF SAID BACKGROUND FIELDS ON SAID WHEELS VISIBLY OBSCURES AT LEAST AN ADJACENNT PORTION OF THE OTHER ARCUATE ROW OF CHARACTER IMAGES.