KEUFFEL & ESSER VINTAGE SLIDE RULE DECITRIG MODEL 4081 w/LEATHER CASE CIRCA 1948

GENTLY LOVED ANTIQUE KEUFFEL & ESSER VINTAGE SLIDE RULE DECITRIG MODEL 4081 w/LEATHER CASE CIRCA 1948. DO YOU KNOW SOMEONE WHO IS A STUDENT OF MATH OR A PROFESSIONAL WHO WORKS IN A MATH BASED FIELD SUCH AS AN ENGINEER, AN ARCHITECT, A TEACHER OR PROFESSOR? THEN THIS PIECE WOULD BE THE PERFECT, HEARTFELT GIFT FOR THEM! IN EXCELLENT CONDITION FOR ITS AGE, THIS ANTIQUE SLIDE RULE IS FUNCTIONAL AND IN PERFECT WORKING ORDER. COMPLETE WITH THE ORIGINAL LEATHER CASE, IT MAKES A FUN AND NOSTALGIC ADDITION TO ANY COLLECTION. THE CASE DOES SHOW SOME SIGNS OF AGE, MAINLY ON THE FLAP THAT SECURES THE SLIDE RULE IN THE CASE, BUT ITS NORMAL WEAR AND TEAR FOR A PIECE THIS AGE, DOES NOT COMPROMISE THE INTEGRITY OF THE SLIDE RULE AT ALL AND STILL SECURES THE SLIDE RULE SNUGGLY IN THE INSIDE. PLEASE TAKE A CLOSE LOOK AT THE PICTURES SINCE THEY TELL THE STORY. COMES FROM A COMPLETELY SMOKE FREE HOME.