McCoy Pottery Question

[dw171]

Picked these up at an auction a few weeks ago and never got around to asking about them. One is obviously marked McCoy and I can easily find it on eBay. The other is unmarked. When I bought them I was told they belonged together in a set. However, I can't find the unmarked one online. McCoy did make unmarked pieces so that's why I'm asking. Has anyone else seen this one or even think it goes with the other signed one. I found a McCoy pottery database and also didn't see it in there. Any help is appreciated.
Edit: Realized the lighting isn't the best. The unmarked one is turquoise blue with a light pink bird.

 

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[Tnmountains]

Not sure it is a set though similar. I think McCoy marked ever piece. I might be wrong.

 

[dw171]

I read somewhere that occasionally the base would get messed up and it wouldn't get marked, but I don't know much about pottery at this point.

 

[nhbenz]

I'd once wondered about the unmarked McCoy question and felt that this site explained why it was that was true: Trademarks - McCoy Pottery Collectors Society
The piece in question though doesn't (to me) look like a McCoy piece. It almost looks more like porcelain than pottery. Does it have a higher pitched ring when tapped with a fingernail? (fired at a higher temp)

 

[dw171]

They both have a low dull sound, nothing like china.