Is this the original case for the 1955-63 Australian silver Melbourne mint proof sets?

gscoins

There's an auction house on Sixbid now offering a run of the Australian proof coins from 1955 to 1963. Some are said to be in the original cases used by the mint to hold the coins. I cannot find any information to confirm this statement, although the firm in question seems reliable. Can anyone more knowledgeable than I am weigh in? Thanks.

Here's a photo of one of the cases:

Sapyx

I am not an expert in predecimal proofs, but to the best of my knowledge, there was no "official case" for Australian predecimal proof coins. Though of course, they would have had to have originally been shipped in something, I do not think there was a standardized case they would have used. Especially given that the denominations issued in proof format changed each year. To the best of my knowledge, people ordering proof coins didn't order a "set", they ordered individual coins.

MrEureka

I’ve seen more than a few in small black plastic cases which I suspect are the original cases.

MrEureka

A quick search on Noble for 1963 proof sets netted this.

gscoins

Thanks to all for their comments and advice. I'm still not sure what to make of the cases in the auction house's listing, but in light of Andy's findings (and their general too-fresh-to-be-60-years-old appearance), I have my doubts about their authenticity.

In any event, the auction is now over.