Thanks for the reply Mick. It's an odd duck to me. An oil pump would kind of make sense with the name on it and the pump mech. If it is indeed an oil pump, I would assume that it would have come before the lubester. Any idea what year it would be from? It was purchased from a guy on a farm and he said he got it off an adjacent farm quite a while ago, but he didn't say what it was used for. Seems kinda strange the length and size of hose that was left on it, I thought it would have been for gas. who knows, we'll wait to hear from some more!!