Speed zone sign

Claim 1

IN A SPEED ZONE SIGN: AN UPRIGHT FRAMEWORK TOP, BOTTOM AND SIDE MEMBERS JOINED TO ONE ANOTHER IN A RECTANGULAR CONFIGURATION; FIRST AND SECOND PARALLEL INTERMEDIATE TRANSVERSE MEMBERS FIXED ACROSS THE SIDE MEMBERS OF SAID FRAMEWORK PARALLEL TO THE TOP AND BOTTOM MEMBERS THEREOF, SAID INTERMEDIATE MEMBERS HAVING FRONT EDGES RECESSED WITHIN SAID FRAMEWORK RELATIVE TO THE FRONT EDGES OF THE REMAINING FRAMEWORK MEMBERS; AN OUTER FRAME FIXED TO THE FRONT EDGES OF THE TOP, BOTTOM AND SIDE MEMBERS OF THE FRAMEWORK INCLUDING RECESSED INWARDLY FACING LEDGES HAVING FRONT SURFACES THAT ARE COPLANAR WITH THE FRONT EDGES OF SAID INTERMEDIATE MEMBERS; FIRST, SECOND AND THIRD SHEETS OF LIGHT TRANSMITTING MATERIAL BOUNDED BY A COMMON FRAME AND MOUNTED WITHIN SAID OUTER FRAME AGAINST THE FRONT SURFACES OF SAID LEDGES AND SAID FRONT EDGES OF SAID FIRST AND SECOND INTERMIEDIATE MEMBERS, EACH OF SAID SHEETS BEING EXTENDED OVER AN INDIVIDUAL OPEN AREA BOUNDED BY SAID FRAMEWORK MEMBERS AND SAID INTERMEDIATE MEMBERS; FIRST ELECTRICALLY LIGHTED DISPLAY MEANS MOUNTED WITHIN THE FRAMEWORK IMMEDIATELY BEHIND SAID FIRST SHEET OF LIGHT TRANSMITTED MATERIAL COMPRISING AN ELECTRICALLY LIGHTED DISPLAY FORMED BY LAMPS MOUNTED WITHIN CHANNELS FORMED IN A FIXED LETTER DISPLAY; SECOND ELECTRICALLY LIGHTED DISPLAY MEANS MOUNTED WITHIN THE FRAMEWORK IMMEDIATELY BEHIND SAID SECOND SHEET OF LIGHT TRANSMITTING MATERIAL COMPRISING A CHANGEABLE NUMERICAL DISPLAY FORMED BY LAMPS MOUNTED WITHIN OPEN ENDED CYLINDERS; SAID THIRD SHEET OF LIGHT TRANSMITTING MATERIAL BEONG MADE OF TRANSLUCENT PLANAR MATERIAL HAVING A DARK LETTERED DISPLAY MOUNTED THEREON; AND LAMP MEANS MOUNTED ON SAID FRAMEWORK REARWARD OF SAID THIRD SHEET OF LIGHT TRANSMITTING MATERIAL.