Product photo from pokemon-card.com (official, Japan)

It's Mimikyu Special Box

ポケモンカードゲームスペシャルBOX ミミッキュだよ

Type: Collection box
Region: Japan
Date: 10 Feb 2018
Coins: 1
Bulbapedia page: It's Mimikyu Special Box in Sun & Moon TCG Era merchandise
Cardmarket: Search Cardmarket for this release

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Coins in It's Mimikyu Special Box
Picture	Coin	Size	Finish	Back	Date	Reg.
	Mimikyuミミッキュ	Metal regular 29.6 mm	Gold bare metal		10 Feb 2018	JP