Found both on Amazon, although the open bottom is a non-starter for me.
https://smile.amazon.com/CYRILL-Leather-Collection-Compatible-Samsung/dp/B07TB1DT82/ref=sr_1_5?crid=3ZIL0DBNZRCM&keywords=ciel+note+10+plus&qid=1573486100&sprefix=ciel+not%2Caps%2C150&sr=8-5
https://smile.amazon.com/CYRILL-Leather-Collection-Compatible-Samsung/dp/B07T92N8K3/ref=sr_1_8?crid=3ZIL0DBNZRCM&keywords=ciel+note+10+plus&qid=1573486100&sprefix=ciel+not%2Caps%2C150&sr=8-8