I have been running this post around all the Oliver pages. If anyone supply additional info, please let me know:

I was at one of the local produce markets in the Fraser Valley of BC
today and when I parked the truck, I noticed some old 
equipment in the field next to the parking lot. Low and behold 
there was what appeared to be an Oliver potato digger. It has a 
serial number plate:

serial # 1163
model: 2-26" Digger

I don't know anything about these implements, but wouldn't 
mind saving it from a slow rusty death. It seems to be all there, 
just a bit of the Oliver green paint on it, but has car tires on it. I 
talked to the wife of the owner, and she said to call her son 
when he comes back in a couple of weeks. I would only want it 
for display. What size Oliver would this match up to. I have a 
Super 55. What era is the digger, and how much should I offer the fellow 
and be fair to him. It doesn't look like it has worked for decades.
Thanks for any help or advice. By the way, this is the first Oliver 
implement I have ever seen around here, so they aren't that 
common. I had to drive all the way to Edmonton for my 3240 2 bottom 
plow.