This is a limited edition WB 100 Funko Pop with Daffy Duck dressed as Pennywise from IT.

It comes from the Funko Digital drop where you had to complete sets of the NFTs to unlock the physical pop. Although the sticker says LE1900 only 1347 people actually completed the requirements and were able to redeem this physical pop so there are 1347 worldwide. I attached a picture of the redemption token which shows this number.

It ships in a pop protector.