this is difficult it is not a cobalt blue.
it is in a very lovely william morris style
it has the same flowing image but not as busy
with the lovely white space giving the design room to breath.
I ended up sliding into Spode.
the transfer work is pristine no sliding as they put the design on.
looks like this will help you with dating
" someone else had the same chart
but I think they lifted it from here.
I looked thru what they have via inventory
and did not find anything similar
I'm sure they'd love your pots as the sign says
but that is no help in identifying the pattern.