Plastic-like material, 2.6 gr., 31.1 mm. The other side is blank.
NET OM VOOR TE KOOP is Afrikaans for "not for sales". I also have a white shilling and a dark yellow half crown from this series (without Theron number, I don't have that catalogue.)
Identified as Theron O13, 6 pence around 1935, issued by John Horn and Sons of Steynrus, Oranje Vrijstaat.
J.H.S. will be th issuer, but what is Y.S.? Also, were plastics like these available around 1935?
Peter