I have one, as well. I thought i might find one in circulation, but gave up and bought one like yours . Beautiful coin. That W is quite striking.

I got the proof with proof set and reverse proof with silver proof set but this one at 69 is a stretch for a large premium jmop

Yes it was free with the 2019 Proof set, the reverse proof came with the Silver proof set, and the uncirculated finish one came with the uncirculated set in 2019. theres also a couple 2020 W nickels in proof and reverse proof.

I bought a couple of 2019 proof sets to help out a forumite earlier this year, like you I had no idea about the 2019-W proof cent. I will probably do a contest at some point for the proof sets - they have no interest to me.

I picked up a 2019-S US Mint Silver Proof Set graded PR70 (and RP) by ANACS pretty cheap. I do love the reverse proofs (I got the 2020-W RP Jefferson Nickel too in original mint packaging) and this 2019-W Reverse Proof Cent is one of my favorites!

Yeah couldn't resist them myself... Had to have all 3 https://www.cointalk.com/threads/small-coin-sets.390158/