Reply #11 certainly shows that there are at least two sizes of lidded pot (at least in the plain amber set), but not the total number (or the combination of large + small if there are 3 lidded pots). I suppose that, working on averages for most multi-pot sets, that 1 large + 2 small would be a reasonable guess.
So, Angela, I will keep my eyes peeled for a couple of enamelled amber small lidded pots and email you with details if I spot any.
Fred.