This is one of my favorite Wedgweood forms in Jaserpware: it's a trumpet-shaped vase, one of a number of designs referred to by Wedgewood as "posy pots". This shape was put into production in the late 19th century and was made through to the 1990's, at least.
This particular example is in solid Portland Blue Jasperware, a color was was developed at the request of Harry Buten and put into production in the early 1970's. For reasons which are currently obscure to me, many of the items made in this color are unique to this color, as if Wedgwood was using it as an excuse to experiment with new forms and variations of existing forms.
In the case of the posy pot, two versions were made in this color: this is the larger of the two, slightly taller and narrower than the usual 2393 posy pots.
Size: 4" tall, 3.5" in diameter at the mouth, 2.675" at the foot.
Mark: impressed Wedgwood marks, dated 1972.
Condition: As new, no wear or damage.