Is the four-letter stamp series issued?

The four-character stamp series has been issued. The four-character stamp series are: The Four Treasures of the House of Letters, Plum, Orchids, Bamboo and Chrysanthemums, Fortune, Longevity and Happiness, Piano, Chess, Calligraphy and Painting, Poetry and Songs, and Spring, Summer, Autumn and Winter.

1, "Four Treasures of the House of Letters" special stamps issued in 2006, the four treasures of the House of Letters, i.e., pen, ink, paper and ink stone, and is categorized into the four words and words stamps, and the set of stamps by the stamp printing bureau of the famous stamp designers Wang Huming design, the stamps were awarded the 2006 National Good Stamps Selection of Excellent Stamps Award and the best design award.

2. "Plum Blossoms, Orchids, Bamboo and Chrysanthemums" refers to plum blossoms, orchids, bamboo and chrysanthemums, and it was issued by China Post in 2010, and the stamps were designed by Wang Huming, which are elegantly presented with the combination of classic poems and ancient Chinese paintings of plum blossoms, orchids, bamboo and chrysanthemums.

3. "Fortune, Luck, Longevity and Happiness" was issued in 2012. The four characters of "Fortune, Luck, Longevity and Happiness" are a high degree of generalization and the best interpretation of the traditional auspicious culture of the Chinese nation, and have been people's expectations and wishes for a better life for thousands of years, and "Fortune, Luck, Longevity and Happiness" has made a number of innovations in the printing process, making it a set of stamps of fine quality that is an organic combination of traditional culture and modern science and technology, and the stamps won the 2012 This set of stamps won the 2012 National Good Stamp Award for Outstanding Stamps and the Best Printing Award.

4. "Zither, Chess, Calligraphy and Painting", which refers to the four ancient skills that must be mastered for cultivation, also known as the Four Hobbies of the Elegant People, was designed by Mr. Fan Zeng and won the 2013 National Excellent Stamp Award at the National Good Stamp Awards.

5. Poems and Songs was issued in 2015, which was hand-drawn and created by Feng Yuan, a famous painter and art educator, and won the Best Design Award at the 2015 National Good Stamp Awards.

6. On March 20, 2017, the Spring Equinox, one of the twenty-four traditional Chinese solar terms, China Post issued a set of four Spring, Summer, Autumn and Winter special stamps, with the following motifs: Spring Swallow Cutting Willow, Summer Lotus Playing in the Water, Autumn Rooster Singing Spike, Winter Snow Reflecting Plum, which was hand-drawn and created by Feng Yuan, a famous painter and art educator.