vintage Alamo Pottery #721 fluted scalloped blue VASE art ceramic 6" tall USA

vintage vase by Alamo Pottery
color: blue

fluted or scalloped edge vase
slightly widens from bottom to top
shiny glaze
marked "Alamo Pottery San Antonio" on bottom (very difficult to read)
"721" etched on bottom

height: 6"
bottom diameter: 3"
top diameter: 4"

good condition
has hairline crack on one side
able to see a bit of white in crack (see 3rd photo....1/4" long)