Rare 50c coin from 1988 minted to celebrate bicentenary worth

All 50c coins minted that year were supposed to display a First Fleet ship and the dates 1788-1988 to acknowledge the bicentenary. But an unknown number of those were wrongly minted.

is this a rare coin or nah? : r/aus

1988 50 cent, Collectables

Coins and Canada - 50 cents 1988 - Proof, Proof-like, Specimen, Brilliant uncirculated

bicentennial coin, Collectables

Check your change now: The 50c coin that could be worth $15,000 after Royal Australian Mint error

1988 TALL SHIP 50c Coin / Lightly Circulated VG $7.65 - PicClick AU

abacus auctions Sale - 252 Page 77

Rare coins: An extremely rare 50c coin worth $15,000 is circulating in Australia

Are there any US coins minted after 1965 that are worth collecting? I am referring to circulating coinage, not bullion or commemoratives. - Quora

50 Cents - Elizabeth II (3rd Portrait - First Fleet Bicentenary) - Australia – Numista

Fifty Cents Royal Australian Mint

Peter Vincent: All their latest coverage - Page 2

Australia 1988 bicentenary 50 cent coin