The half name variety is generally less valuable than the full name variety, I.e A Bandana of Exceptional Quality.
I think if you price it for anymore than 500k on a vendor it’s going to sit for a while. There are full a name hats that have been priced at 3m that have been on VS on Atlantic for months.
These ones are newer than the full name variety and I think were the result of a bug when they were changing over the naming convention on armor and clothing if I remember correctly.