Looks very similar to a Sherry’s made in London up until somewhere around the mid 80’s to early 90’s, I used to have one at one time, and remember seeing another for sale badged as something else that was identical to mine. I’m pretty sure they went out of business some time ago. I don’t know if Sherry’s made the pumps or bought them in,the pump on mine was more like yours than the ones pictured on the net. Just did a google search and there are some images on there which may help. Mine was the same fetching shade of pink as the ones on there. I did visit the factory and bought a replacement Danfoss pressure switch, big reduction for cash! At the time I remember thinking that the writing was on the wall for the company. Good luck in your search.