Amber coloured tulip

Can anyone help? Yesterday in Dunham Massey's wonderful garden, my friend and I fell for a beautiful tulip that we had never seen before. It's a single tulip with amber petals, shading to bronze inside, with a beautiful sheen on the petals. I have searched the internet for an image that corresponds with it (using gold, amber, bronze and copper as search terms) but without success. I may have to go back to Dunham very soon and ask the gardeners - their tulip beds were truly spectacular. Any ideas?