All About Pocket Knives

I RECENTLY GOT A CASE ELEPHANT 6250. I DON.T SEE ANY DOTS. NONE BURIED AND I DID EVERYTHING BUT TAKE IT APART. IM TAKING IT FOR GRANTED ITS FROM 65-69. IT HAS THE BULL ELEPHANT ON IT. AM I WRONG? IS THERE A REFERENCE THAT SAYS THE BULL ELEPHANT IS ENGRAVED ON LATER KNIVES? IVE CHECKED TWO REFERENCE BOOKS AND A WEB SITE AND NO MENTION IS MADE OF THE ELEPHANT AND WHEN IT FIRST APPEARED. HELP!!!!!!!!!!!

The elephant etching was added starting in 1974 (pg. 177, COLLECTING CASE KNIVES, by Steve Pfeiffer).

THANKS ELVIS,
I GUESS THAT MEANS THE KNIFE MUST BE FROM 1974 TO 1979. IT WOULD BE NICE IF CASE HAD A LITTLE BETTER METHOD FOR THOSE YEARS WITH THE ELEPHANT TOE. IT WOULD BE PRETTY HARD TO TELL A CASE ELEPHANT FROM 1965 TO 1973. TO ME THEY WOULD LOOK THE SAME. THANKS FOR THE HELP ELVIS

I've found the same problem on the Case toenails USA's and 70's dots. Usually the dots are hidden under the bolsters and that makes it hard to tell if the knife is a USA or 70's era.

Paul