It is good to know that 1930 penny was not released till 1931, because a couple of mate said their church had a bronze sign saying it was built in 1930 and their father said he had put a new penny behind it we it was built. By the way the the sign is still there untough.
I was at Coiltec Maryborough a couple of years ago and the guy that runs it showed me a 1930 penny plus some of his gold nuggets, very impressive indeed.