Delft blue pitcher mark question

I believe this is one of the souvenir / tourist wares. I was just curious about what the top mark may mean - 146 or 14b? All the websites I've found cover antique Delft marks, which don't apply to this one. Thanks!

 

I found this one with a crown above the 146, but I don't think it's Regina, do you?
The 146 must be the mold number, because the patterns are different.
https://www.worthpoint.com/worthopedia/delft-holland-pitcher-blue-floral-1821818156

 

Thanks Janet - I know only the basics about the Delft Holland stuff. I looked up Regina marks, and don't see any without some sort of crown mark. The lady who gave it to me said she brought it back to the US in the late '60s or early '70s. She had no idea of its age when she bought it, just that she wanted a memento of her time there.

And 146 being a mold number makes sense. I didn't think to check for matching shapes. Thanks again!