I have no idea what it's actually worth, just know that it's pretty rare. The guy obviously knows what he has, but it may be worth a call to see if he has more of a fair minded sale price to make it move. Moosomin is a pretty small old town right along the Saskatchewan and Manitoba border and about 2 hours up from North Dakota. Might be closer to Kevin Frith than anyone else. Just thought I'd throw it out there.
Graeme (pronounced Gray-um)
Collecting Canadian Products such as Red Head Oil, Red Indian Oil, Buffalo (Prairie City) Oil.