Found a duck soft toy near the bins in the stockwell gardens estate
(Isabel on 01 Jan 2020)
When: 31 Oct 2020
Where: lansdowne way, stockwell(51.4746° N, 0.1255° W)
I lost a signet ring, quite unique - It has the horizon on it, like you're looking out over the ocean from the beach. It slipped off my finger somewhere near Stockwell, possibly around Lansdowne Way.

Could one of these be yours?