Swans from the Philips TV Factory

In New Zealand in the 60s and 70s Philips made TVs in the Nae Nae factory in Wellington.
The guys who made the cathode ray tubes and valve cases were very skilled glass blowers and in their spare time made sets of glass swans. They were not generally available to the public but from time to time the social club sold batches to raise funds or they were gifts to the family of staff.
Usually they came in a set of 3 the same colour in graduated sizes.
These I found at the SPCA in Levin, they had about 20 at the start and these were all that was left, they are the larger size of the 3.
as you can see the body is a separate layer of coloured glass with the rest being a clear layer over the top.
They also used to make colourful glass fish, but I'm still looking for one of those.
140mm high, 120mm long and 65mm wide.