Spode French Marigold - dating help

Anyone know a way that I can accurately date this Spode candy dish with French Marigold Motif?

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From what I've read in the book Spode-Copeland-Spode, 1770-1970 by Wilkinson and also on the internet your mark looks to be from the late 1700's.

 

thank you!!

 

Here's a similar design at Getty Images made by Derby circa 1800, LINK.

 

Amazing, super helpful. I have one more plate, see images below. Any leads on this one?

 

Here's a similar one on sale with Andrew Dando a leading British porcelain expert. Pretty sure that yours will date to the same period.

 

If selling the first one, be sure & call it a basket as per John Brassey's find.

 

Here’s the other mark for you

 

I think the impressed mark of the second one is “Spodes New Body.” I stress “think.”