Here is a set of photos showing the Yanmar models that are often seen in the US as gray market imports. It's on the website of a Japanese dealer who exports container quantities, 8-12 units in a 20 foot container or 16-26 units in a 40 foot container.
http://www.ksenterprise.co.jp/yanmar.html
I don't know anything about the dealer. I just liked his photos of good condition, unrestored tractors.
He also has photo sections for Iseki, Shibaura, Mitsubishi & Satoh, Hinomoto, and Kubota. (Note you can't import Kubota grays into the US.)
http://www.ksenterprise.co.jp/yanmar.html
I don't know anything about the dealer. I just liked his photos of good condition, unrestored tractors.
He also has photo sections for Iseki, Shibaura, Mitsubishi & Satoh, Hinomoto, and Kubota. (Note you can't import Kubota grays into the US.)