Examples of the type

Picture 1 of the example of 50 Cents - Elizabeth II (2nd Portrait; Dodecagonal) Picture 1 of the example of 50 Cents - Elizabeth II (2nd Portrait; Dodecagonal)
© brismike (CC BY-NC)
Private collection
1979 – Double Bar Variety (Mintage inc in normal variety)
31.51 mm • 15.55 g
Rare 1979 Double Bar Variety.
See two lines behind Emus head.
Was also issued in 1980.
Picture 1 of the example of 50 Cents - Elizabeth II (2nd Portrait; Dodecagonal) Picture 1 of the example of 50 Cents - Elizabeth II (2nd Portrait; Dodecagonal)
© bundes4 (CC BY-NC)
Private collection
1980 – Circulation (see comments)
Picture 1 of the example of 50 Cents - Elizabeth II (2nd Portrait; Dodecagonal)
© bundes4 (CC BY-NC)
Private collection
1980 – Circulation (see comments)