Is it true that calligrapher Gu Lan sells calligraphy and painting everywhere?

It is not true that calligrapher Gu Lan sells calligraphy and painting everywhere. Teacher Gulan's calligraphy and painting has been certified by the State Administration for Industry and Commerce and belongs to the national calligraphy collection. The price per square meter is between 5000-7000 yuan, which has high collection value. There is no official information about selling calligraphy and painting everywhere. Therefore, it is not true that calligrapher Gu Lan sells calligraphy and painting everywhere.