Posters of various places not all of which I am sure looked like that. British. Commissioned by the Empire Marketing Board which shut down in 1933.

"Let The Whole Empire Load The Christmas Tree." 1927-1933.
“Let The Whole Empire Load The Christmas Tree.” 1927-1933. In the public domain. via https://www.reddit.com/r/ukpolitics/comments/7kdd6x/let_the_whole_empire_load_the_christmas_tree/
"South African Oranges." 1927-1933.
“South African Oranges.” 1927-1933. George Sheringham, illustrator. Image © Library and Archives Canada. Fair use license via https://imperialglobalexeter.com/2015/01/19/announcing-a-new-website-imagining-markets/
"The Produce of the Home Country Crowns the Christmas Feast." 1927.
“The Produce of the Home Country Crowns the Christmas Feast.” 1927. Austin Cooper, illustrator. Image © Empire Marketing Board Archive at Manchester Art Gallery. Fair use license. via http://vintageposterblog.com/2010/07/27/the-volkswagen-problem/#.XamZSuhKhTs
"Jerusalem." 1920's-1933.
“Jerusalem.” 1920’s-1933. Image © Pictorem. Fair use license. via https://www.pictorem.com/52624/1920%20Original%20Empire%20Marketing%20Board%20Poster%20for%20Jerusalem.html