There is one wheel that seems to be a little bit different in its markings.
* K14 2 13 @ the valve stem, 14 x 5 1/2 on the rim
The rest are more consistant how they are marked.
* unk 1 15 5.5 @ the valve, 14x 5 1/2, Canada, 10 1 on the rim
* M5 4 9 5.5 @ the valve, 14 x 5...