I'll start with my 1947 Unimatic. If you compare it to Robert's original you will see the original tub has been replaced with one from '51-'53. The pulsator is original.
Here is my 1955 Unimatic. A MAJOR restoration job. The tub was so rusted there was no way it was going to look like it had come from the factory, so I made the best of it. The whole tub has been painted with black POR-15 rust paint. The Pulsator is original and is all black so kind of hard to see in this photo.