It is a cinematographic work, photographic work, work of applied art or anonymous work first published more than 75 years ago. (See Commons:Copyright rules by territory/Vietnam)
It is a cinematographic work, photographic work, dramatic work, work of applied art or anonymous work first published more than 50 years prior to January 1, 2010.
It is another type of work, and the creator died more than 50 years ago.
To uploader: Please provide where the image was first published and who created it.
You must also include a United States public domain tag to indicate why this work is in the public domain in the United States.
Note that this work might not be in the public domain in countries that do not apply the rule of the shorter term and have copyright terms longer than life of the author plus 50 years. In particular, Mexico is 100 years, Jamaica is 95 years, Colombia is 80 years, Guatemala and Samoa are 75 years, Switzerland and the United States are 70 years, and Venezuela is 60 years.
Uploaded a work by Hãng Việt Nam hàng không - Air Vietnam<br>(Anonymous author over 50 years before 2010 making it eligible for "{{Tl|PD-Vietnam}}".) from * [http://nhayduwdc.org/st/vnch/avn/ndwdc_st_vnch_2016_avn_hkdsvnch_2016SEP09.htm Hãng Việt Nam hàng không - Air Vietnam] ([https://www.ecosia.org/images?q=H%E1%BB%99%20chi%E1%BA%BFu%20VNCH#id=D77047D29BCB0D040472D8169870135DDEE045D1 Ecosia search] / [http://nhayduwdc.org/i/hh/hkdsvnch/T242_SoThongHanhVNCH_I_250x432_moi.jpg Source image])....