I would simply give them a call, I’d be willing to wager they can help you date it either off the model or serial number if legible.Thank you Hiball! I have searched their history pages and PDFs but no luck yet. I have seen lots of info on screw-type presses there and a bit elsewhere. I am mostly curious as to how old it might be.
Everything currently works with only some seal leakage when extending the secondary large piston after the smaller diameter inner one reaches the limit of it's travel. I don't use the press often enough for this to worry me.