These were "common as grass" during the 1960's (my childhood). We carried Imperial and Saber "Cracked Ice" 7 1/2" and 9" "Melon Testers" bu t my older brother (Gary Lynn) bought himself a "fishing knife" (as shown) with yellow scales, complete with "hook disgorger". (I think that it was a Saber).
Lord almighty, those were the days!
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