Type 1 oil cooler. Looks new or reconditioned. I'm not 100% sure of it's origin. I think it was part of a spares package from a car I bought quite some time ago. I've never used it.
New price is $60, my price $25
http://www.flickr.com/photos/smsazzy/5586897040/
http://www.flickr.com/photos/smsazzy/5586893654/