my 67 shifter is different than other 67's I've had whats the deal ?

[19673ontree]

my 67 pickup is 3 speed om column but it has the 68 to 72 style shifter and it has a syncronized trannsmission , on all the other 67's I ever had they had a three speed on column shifter like came in the 63 to 66 trucks it's a different looking shifter and shifts better without ever hanging up , the 68 to 72 style is more prone to hanging up , I wonder if my truck is a late build or if it's been changed ?? it sure looks original ??