Rich, aside from stylistic differences they do appear to generally match up, although this one has a few more characters than an original I found in Google images- (says absolute know nothing about Chinese Characters).
This is apparently the translation...
“[t]his foreign person has come to China to help in the war effort. Soldiers and civilians, one and all, should rescue, protect, and provide him medical care“. Another Flying Tiger chit read: “I am an American airman. My plane is destroyed. I cannot speak your language. I am an enemy of the Japanese. Please give me food and take me to the nearest Allied military post. You will be rewarded.”