[mickmate]

Easiest and surest ID of a side oiler is the socket screws along the bottom, outside of the block, just above the crossbolt holes on the right (oops that's left(thanks Steve))side. They plug the oilways that make it a "sideoiler". The matching holes on the ends and bottom of the block all confirm the oiling method. The truth can be elusive no matter how many publications you lay your hands on, remember paper doesn't refuse ink!