Ok, I found the specs, for the 70 model year, they were changed to, and I quote: "two front sidemarker combination lights & reflectors".
In 69 they are listed as: "two front sidemarker reflectors".
'72 K-5 4x4, CST, 3.07, 4 speed, NP 205, 31' x 10.5", Olive green and primer, rusted out, rice smasher!