73 is best wishes, so adding the s is not needed.
73 is the right choice.
Whatever happened to the idea of plain english on phone?
People today are lazy. "73" is easier to say than "Best wishes".
73 = Best wishes
73's = Best wisheses
:laugh:
ok,.............. so is it: 73 (0ne word "seventy-three")
or 7 3 (two words: "seven" "three') ^^ ab v c^^^^ ab v c^^^^ ab v c^^
Not only that but "Best 73's" at that.