No problem with the pause in getting back to me, and thanks for the photos, I can see exactly what you have.
This colorful floral chintz pattern with gold embellishments is called "Mayflower". It was created by the C.M. Hutschenreuther porcelain factory in Hohenburg, Germany, in the 1930s and marketed in the US under the Black Knight brand.
"Black Knight" was the trade-name used by the New York based US importer Graham & Zenger (active in the 1920s & 1920s) on porcelain made in Germany, mainly C.M. Hutschenreuther in Bavaria, and Carl Tielsch in Altwasser (now Stary Zdrój) in what is now Poland. It was very high quality china, and successful in its day, but the import business came to an abrupt and permanent end with the outbreak of World War II.
As far as value is concerned, there does seem to be some sustained collector interest in this pattern on the secondary market (auctions and on line). This example, for instance, sold recently on line for $25 which is probably about the top end. I would give yours an auction or on line (eBay etc) value in the range of $18 - $28.
It therefore has a full retail value (if you saw it for sale in an antique store) of $60. This is also the replacement value for insurance purposes.
I do hope this helps!
PS. If there's anything more I can help you with on this, please don't hesitate to ask. If not, could you very kindly rate my services (with the stars or "accept" button) as this is how I get paid by JustAnswer at no extra cost to you. We can still continue to communicate here on this thread after you do. And if you have another item you'd like to ask me about, just start a new Question and put "For Robert S....." in the subject line. Thanks, R.