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.
Uploaded a work by The postal service of the State of Vietnam. from * [https://www.ebay.com/itm/State-of-Vietnam-FDC-1952-Second-Airmail-Set-Dragons-C5-C8-on-Small-Cover-L116/393114352778?hash=item5b8770fc8a:g:k3EAAOSwfzRfdUzG State of Vietnam FDC 1952 Second Airmail Set Dragons C5-C8 on Small Cover (L116) - $15.00 - $1.00 Shipping], www.eBay.com. with UploadWizard