Oiva Toikka Willow Grouse bird Nuutajärvi Finland Art Glass Design. Design by famous Professor Oiva Toikka in 1981. The willow Grouse is presented on page 21 in the new book “Toikka’s Glassbirds”. The popular Willow Grouse was in production for decades starting in 1981. This individual is in a Very Good-Excellent condition, with only insignificant normal minor wear on the underside. Size: 170mm x 115mm Signature: Oiva Toikka Nuutajärvi Condition: Very Good-Excellent. You are also welcome to have a look at our many other items in our store!