The dial in the eBay link has the numbers inset too far, just opposite of another common defect...the letters too far to the outside. The printing also appears to be pale.
Compare the lettering to another dial they have for sale to see what I mean...eBay item number 263892047654
The quality/likeness of the pictures is unknown so there's also that to take into consideration.
I will admit I am not too sharp on grading dials but I do have a few genuine 1016 dials for comparison.
Plus $19.80 shipping is a bit stiff imho.
Not impressed with the Ruby dials either although they may look better in hand, it may be the photography.
In Ruby's defense, some of the dials on supposedly genuine 1016 watches look about the same:
https://www.bing.com/images/search?q=rolex+1016+explorer&qpvt=rolex+1016+explorer&FORM=IGRE
Assuming most of the dials in the images above are genuine, there are a lot of variations so maybe there is quite a bit of leeway in choosing a dial. The 'Stilty' dial on my JMB '1016' is not too hot comparing it to my nos examples but when comparing it to the images in the link above, it is not too bad.
Something else about ordering aftmkt dials from Ruby, Yuki etc...the dial in the picture may not be exactly like the dial you get. The dial you get may be a little bit worse or it might be a lot better.