Proving or sample strikes of Tasmanian datestamp exist and I need an example for my collection. I remember missing out over 25 years ago on acquiring a fine strike of the Type 5s Chain Of Lagoons dating from 25MR63 ... at least a couple of months before issue. If only I'd remembered to mail my bid.

Can anyone help me? If you have an image of a 'proving strike' of any Tassie postmark that I can post here to assist me with my search, please let me know.