Carved Lock and Key Asian

Hand carved Asian lock and key. Both have a hole in the top. I do not know the translation of the characters, nor do I know the type of stone. It’s light green. The key has joined circles on one side. Estate sale item. Interesting and unusual! Please examine photos.They are considered part of the description. Measurements are approximate. Thank you! ❤️ New to Poshmark? Join today with my invite/referral code 22JASPER and earn $10 off your first purchase! Tags: Jade (?), Jadeite (?), Asian, collectible, Key, Lock