Estate sale book has Vietnam Flag

[painter777]

Purchased a few things at an estate sale last Friday. A old gunsmith book had a flag in it.
Along with the flag was a typed page with a translation.

Pardon all the pics but I'll share all I have.
Few questions....
Anyone think this is real?
If so Is it NVA celebrating a victory over the South?

Any help appreciated
Charlie-Painter777

P.S. At this same sale I bought a (I believe) a Vietnam era helmet (rear seam) with era correct camo cover and inner liner marked US 4. Plus a front seam unmarked WW11 shell and liner. I'll get pictures and do a new topic for help on these.

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