I came across these beautiful images of Chinese TB posters online. Many Communist governments, including China, put a halt to fundraising seals. However in China, it is clear that education and treatment continued.
The use of fundraising seals was a big factor in the early exponential growth of the war against TB in America. Small donations allowed everyone to be part of the "Crusade of the Double Barred Cross", the international symbol of the fight against TB. The DB Cross was the coat of arms of Godfrey of Bouillon, first Crusader King of Jerusalem. Note that in the last poster the man is holding a glowing DB Cross which is resisting the TB germs.
Today in America, It is disconcerting that fundraising seals are on the decline. Many old seal issuing societies are focusing on high dollar corporate donations and government grants. Some have discontinued their long running series of seals all together.