These images and text were originally published by Bonsai Empire.
The National Bonsai Foundation is located inside the US National Arboretum, and was opened in 1976, with 53 Bonsai trees donated by the Nippon Bonsai Association.
The NBF also has a collection of Penjing trees, gifted by China in 1972 and by Dr. Yee sun-Wu from Hong Kong. Finally there is a section with donated trees from within the US. With these three large donations the collection of the National Bonsai Foundation was immediately well respected.