Keen Kutter Kombination...no...not KKK.

So my dad decided to hit up some antique shops and had asked me earlier what I might be interested in if he ran across any shaving stuff. I think I sent him a 12 page e-mail with as brief of a guide on the stuff and the prices I'd be willing to pay. The other day he showed up with THIS:

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It's in its original tin box and appears to be in very good shape to me (the stone that is). The tin is a little rough but has good color and is still legible in 95% of the text, including the original directions. Thought I'd share; and wanted to know if any of you guys (AKA Ron) were familiar with these hones and could give me an idea of what grits they are. The fine side seems rougher than my Swaty, but not by much...maybe it just needs cleaned?

I'd love your input. Thanks!