The Mya Moe website tracker shows the specs as it indeed having a radius fretboard (likely standard on their typical tenor model ukuleles). Good luck on the sale.
https://www.myamoeukuleles.com/uketracker.php?trackingNumber=1379
The website says it has a radiused fretboard ~
It is the same one as on Reverb. I don't believe it has a radius fretboard, I'm not the original owner and you're right, it's not listed on the build card. It's not a 1.5" nut, it's the standard 1 3/8" nut.