That is good, thank you.
Your plates are made by a different Wedgwood than the original, famous
firm. They are made by Enoch Wedgwood, who is a distant cousin of
Joshia Wedgwood, who founded the original "Wedgwood" pottery... the
original pottery, being the well-known one, who are usually famous for
non-glazed ceramics, popularly in blue.
The two firms just happen to share the same family name, but they were
entirely different pottery firms. A little bit more info below, and
also a link to 4 plates for sale on eBay, seemingly very similar style
to your plates/pattern, based on your description.
https://en.wikipedia.org/wiki/Enoch_Wedgwood
https://www.ebay.com/itm/384707837843
The company changed names a few times, and they used the name "Wedgwood
and Co" from 1860 - 1965, as stamped on yours. I don't know if the 5-64
is a date code, pattern code, or what. I'd assume that your plates are
older than 1965, due to the crazing in the glaze. I'm not well versed
on English pottery, but I'd estimate that yours are close to 90 years
old, give or take.
I don't have a guess on value either, but I'd assume less than the
original Wedgwood firm. At least in my region, all pottery (even real
Wedgwood) has really gone down in value, unfortunately.
I hope that this is helpful to you!