There is currently a rare Standard Gauge 600e Hudson up for sale on "the big-EE" auction site. I don't know the seller or have any interest in the sale, but thought some of you may want to be aware. Supposedly, less than 30 were ever made.
He was a talented builder who lived in Seattle and started his train building exploits in the late 1970's, making stunning examples of Standard Gauge tinplate. Disclaimer, I have nothing in Standard Gauge, other than accessories, but his hand-built creations were simply beautiful.
One of my favorites of his Liberty Lines, which I wish I have, was his example of the B6 switcher, his 608E, which used a rubber O-ring drive belt. The first 2 photos were posted by our friend Carey Williams back in 2017. According to the TCA article, it was thought that less than 15 of the switchers were ever built.
Here's another 600E which previously sold: