The only thing I might add is that both Cambridge & Heisey here in the US had to retool/modify molds because of extraction problems & resulting loss of product & it was far from uncommon. There may be two ways to look at this particlular piece although pure speculation of course. It could be that more support was needed for the open legs, perhaps the were prone to breakage when extracted or perhaps its exactly the opposite, it could be that the original closed area between the legs gripped the mold making extraction difficult. As far as the color goes the pic was taken at night & in the sunlight it is lighter plus while I do not know if this holds true for European manufacturers I can tell you that it was not unusual for batches to turn every now & then on US products & shades both lighter or darker has observed from time to time on pieces original to the manfacturer. This was especially true for opaques from Cambridge, US Glass (Tiffin), Fenton & Northwood. This did not stop them from being sold/marketed, it was just the way things were. Ken