3 jam jars in blown glass

3 jam jars, different, but very pretty! Two have a capacity of 500 gr, the 3rd a capacity of 375 gr. Each of these capacities is written on the bottom of the jar. What's more, the location of the crystal factory is also written on the bottom of the jar: - the 375 gr one is marked "oullins", a small town in the lyon region, the 2nd is marked "portieux", a small town in the vosges. The 3rd has nothing written on it. The top of each jar has a groove made to attach a string to secure the covering paper. These jars were intended for jellies, I don't know why. However, we can imagine the beauty of the transparency of these jellies in these jars, from the red of the redcurrant to the purplish of the blackcurrant...