Really beautiful blue cobalt carnival glass top hat vase!  
This one is unique because it has just two lifted edges as opposed to the full ruffle all the way around.  

There is an imprint of blackberries in a vine, twisted, around the edge on the inside of the vase.  The bottom has a really amazing satiny upper half and towards the smallest portion it has a rippled, shiny glossiness.  There is a slight flare at the foot of the vase.  The underside is indented in the center.  

This item is in excellent vintage condition.  There are no cracks, chips, or flea bites anywhere.  There are a few lines present from production, but they are part of the production of the item, when it the glass was pressed into the mold.  

The tallest point is 3.5", widest is 6.75" and perpendicular measurement (where the sides go up) is 4.75"
All dimensions are approximate.
Please examine all photos for complete information.