I had a long chat to Dad about these tables, with some interesting news.
Dad migrated in 1951, not 1955 (as I first thought). These tables were made in 1953 - 1955. He did make 14 tables.
Two tables were sent to Wollongong
The chrome scratchplates look like they have been removed, but the coin acceptors look to be the same. The base is definitely not original. There is one feature that might prove it 100% - If the internals are the same as mine (pictured below), then it was definitely Dads;
Dad did say that his table was copied by another operator, so it could be a copy