Picked this up on eBay last week, surprised to be the only bidder as coloured pressed glass for Manchester factories is unusual, certainly for tableware. This is an oval trencher roughly 6 inches by 3, registered in 1885, sometimes comes with electroplate.
It did make me think as to why we see so little coloured glass like this. I've always thought the pieces most likely to survive would be the pretty ones, and that coloured pieces would be over-represented in the survivals, but numbers are so few. Were they very rarely produced I wonder, on limited runs, or are people simply hanging on to them...