Well, I have my great grandma's 66-16, its a treadle, in original cabinet, and at some point she added a motor...I love it, but it was my Ma's, too...I hear a lot of people love the "red eyes"...I think some of them are model 66's, too...but not sure which model 66, or year...I know there are a lot of knowledgeable vintage lovers on here, and they will be along soon...good luck!