Pair Old Bulbous Shaped Cut Glass Decanters Info Needed?

Old Pair Cut Glass Decanters, with bulbous shaped bottoms. I found these this morning with a pair of Victorian Barley twist candlesticks in a skip. I thought they were to good to throw away so I saved them before they got smashed. I don't really know anything on Decanters so would like to know more about them, I do know these have age due to the General scratches to the underside. Please let me know more about them i.e. Everything you know, as I would never personally buy Decanters but for free I had to have them.