The vases are in the pattern known as Mary Ann, that was made by Dugan in Classic old Carnival. They are lovely vases - congratulations.
The pattern has been reproduced. But it's not all bad news as they are easily identifiable. Steve and I purchased one of the first re-issues about five years ago, and we worked hard to figure out how to identify the classic old version from the new repros (results published in our "Carnival NetworK" #29, 2001).
I'll cut out most of the intervening and substantiating observations etc., and cut to the chase! Your pair of vases are genuine old examples
. The new versions (Mosser - using an old mould) have 10 scallops and 2 mould seams. There was an original version like this, but it's rare. Most early ones have 8 scallops and 4 mould seams.
The colours in the repros include vivid purple, orange/amber, vaseline and vaseline opal and pearl/white. Possibly others too now. You'll see them on eBay, and they are often referred to as "Mary Dugan" vase.
Another way to tell if it's a repro is to check the base. Most of the repros we've handled have had iridescence on the base.
Here's a link to Rosso's - the Mary Ann repro can be seen there.http://www.wholesale-glass-dealer.com/products/vase/vase.htm