Royal Blue Jasperware was first made by Wedgwood for the 1953 coronation of Queen Elizabeth II. As I understand, it was originally produced from 1953 to 1955 and then reproduced for the Silver Jubilee in 1977. This is the original made in the 1950s, it is a family item and was purchased in 1953. The wedgwood mold produced in 1977 had the addition of garland around the edge of the lid. There are two images on the jar, Queen Elizabeth on one side and her "intended" on the other.
This is a cigarette jar, which was common during the first half of the 20th century and almost every family has some sort of jar or box on their coffee/cocktail table to hold cigarettes.
4" tall, 3 3/4" diameter at the base. Marked on the bottom 2nd grade. I cannot see a reason for the "seconds" designation but often flaws from the factory are barely perceptible.