The flat shape was developed particularly for a few species of birds and fish. In contrast to the CC-shape these glass eyes are made with a flat, plain back (with the exception of Art. No. 160, which has a concave back). They are also hand-painted and the colours are baked at high temperatures.
Designed especially for bird and fish mounts, these glass eyes are made exclusively with a medium-sized round or drop-shaped fish pupil.