Hello KevinH, you're right it could be described as teal green. As I mentioned Walther use "smaragd" for one of their colours which translates as emerald or teal green. I've added a photo to show the "waistline" on the duckling, just up from the bottom. There are a couple of ducks on the 20thcenturyglass.com website with a similar feature in the V. Nason section, in clear blue and amber.