I have 8 of these jade turquoise plates (not bottle green, and not blue either) and I have 2 cinammon/amber slightly smaller plates.
The jade ones have a wavy rim and measure 6.5" diameter (16.5cm) and the cinamon ones measure 6" or 15.3cm but are smoothy round without the waved rim.
They are all low and presumably meant as plates not bowls however they all have a raised lump in the middle of the bowl, not huge, but they aren't flat like a side plate might be. All have a very wide folded rim measuring over 3/8" or about 11.5mm that has a ridge around it.
When I bought them the man said they were Dutch. I bought them because whilst I thought there was a chance they might be new Morocco/Egypt/Recycled glass I was interested to see if they were Antiqua Leerdam or anything similar to research, but I've not managed to find them.
Any thoughts on whether or not they are old please? They aren't heavy and are quite 'fine' but seedy as well as bubbly with this neat smooth snapped off small pontil mark.
thanks for looking