This is for an antique teapot set made by Wilcox Silver Plate Company, engraved with the letter F. Set includes the teapot 1979N and the creamer and sugar bowl, both 4079N. This is from the early 20th century before they began with the circle marks in 1921. All 3 items are stamped with makers mark on the bottom (see pics) Marked EPNS = electro-plated nickel silver

Teapot = Handle to Spout 10.25"; Height (base to very top) 9"; Diameter 6"
Creamer = Handle to Spout 5"; Height (base to handle) 3.5"; Diameter 3.5"
Sugar Bowl = Handle to Handle 6"; Height base to handle 3.5"; Diameter 4"