It's one of those external spindryers they had back in the 1950:s. I thought they disappeared when washing machines with built in spindyers were introduced. www.spin-x.com
According to the site, this spindryer spins at 3300 rpm. The site tells you that that washing machines spin at only 500 rpm, something I find hard to believe. I remember selling 1200 rpm machines a few years ago, and I think the latest models have 1500 rpm spin. (The integrated washer/dryers have very high rpm, to minimise the load on the dryer part)
I wonder what the clothes look like after a 3300 rpm spin.