Hi ,
They are all most likely to be German or Bohemian,though I have seen some described as Russian , 2nd 1/2 of the 18th century,those with flat ground bowl rims will have been made entirely from the bowl end , the foot having been applied as a gob of hot metal and wooden boards used to shape the gob into a foot ,the whole glass is then broken off the blowing iron at the bowl end and the rims ground flat , so no pontil marks on the feet , if the larger glass has a fire polished rim then the foot could have been blown separately and applied as per normal and a punty iron applied to the foot to enable fire polishing of the rim ,the punty scar would then have been polished off , if the larger has a flat ground rim then the other method would have been used and the blob left from the gob would have been ground away to leave the polished pontil mark .
cheers ,
Peter.