A quick question about Quintessential Series books that were printed

[Karesch]

Hey, quick question for the hive. I'm trying to fill out the Quintessential series on my bookshelf and it's come into question about whether 2 books were ever printed or only ever released as e-books
Quintessential Kobold
Quintessential Aristocrat

Any help in verifying if these were ever printed (and additionally where I could track down copies because I've had no luck so far) would be greatly appreciated!

Cheers
K

 

[Bifford]

Showing as PDF only on RPGGeek.

 

[MongooseMatt]

Indeed, PDF only.