Originally Posted by
randyjawa
That possibility did not come to mind when first addressing the OP's question. I think the handlebar sleeves, like the one pictured, were offered on later bicycles, probably those from the eighties. That, however, is just a guess...
I had a '78 that had the sleeves. I don't know what year they were introduced though, nor does anyone know what year/model the OP's bike is.