Sorry Ray, but I think the "date" you are seeing is simply a couple of circular canes, one over the other, appearing to be an "8", and the partial "6" is just another round cane. Groups of round canes as a central motif within a complex cane are quite common.
IIt's a bit like Old English canes where there are similar effects and some collectors have given "meaningful" names, like "window canes" to patterns that are really no more than a set of tube canes grouped together.