12 - probably the model number of this particular item/piece. A star or flower impressed. I don't know the significance of the star shape/flower that is impressed, I suspect 12 is the model number of the item. Dates were indicated by letters which I don't find. There is a story here but I don't know the significance, of a man on one side, reading a letter?
And a woman on the opposite side. There are pillar type designs on other sides, and an emblem/shield with ribbon type design.
The upper border and handle is covered in ivy vine, there is a different decorative border on lower edge. A nice big piece, Wonderful for serving milk or cream for a family gathering/buffet or a dinner party--or to display in your antique or blue color scheme! Terrific price for a beautiful example and not as common pitcher design. The item "1891 Antique Wedgwood Deep Cobalt Blue Jasperware Porcelain Handled Pitcher EX" is in sale since Monday, March 05, 2018. This item is in the category "Pottery & Glass\Pottery & China\China & Dinnerware\Wedgwood".
The seller is "oldblackdog" and is located in Colorado Springs, Colorado. This item can be shipped worldwide.