This fabulous antique enamelware/granite ware teapot is pictured in Helen Greguire's "The Collector's Encyclopedia of Graniteware". In fact, it is in the first color photo in the book! Check out page 19, Section 1, Plate 1, Row 3, #3.
She describes it as, "Teapot, pewter trimmed, pink, decorated with apple blossoms".
The handle on this one is slightly different. But the handle can be seen in the same book on page 27, on a blue coffee biggin decorated with apple blossoms, and undoubtedly made by the same company. There are no company marks or names on this teapot.
Later on in the book, Greguire rates this teapot in pink as a "Rare color". I would describe the color as a soft pink. The apple blossoms are white with yellow centers and 4 leaves each. The pink background pattern looks like a honeycomb.
The teapot is in excellent condition. There are no chips, cracks, or repairs. The finish of the enamel still shines. The metal trim is also in excellent condition, the hinge is in good working order, and the only wear to be seen is on the base. There are a couple of faint lines on the interior base of the pot which do not feel like cracks.
The teapot is about 9" high, and about 9" wide from spout to handle. The base diameter is 4-1/2" I date the teapot c.1880-1900.