2021 Niue Justice League Swamp Thing 1oz Silver Colored Proof Coin AND New 1982 Swamp Thing DVD. Limited 50th Anniversary Edition Coin. As a limited edition, highly-collectible premium offering, each coin comes in an acrylic display case with a numbered Certificate of Authenticity. 2021 Niue Justice League Swamp Thing 1oz Silver Colored Proof coin is […]