This is a vintage Vietnamese phrase book with two cassettes.
No signs of use, but shows some fading on the spine.
When purchased new, the two cassettes were wrapped in plastic with the book, with no cassette cases.
I had an extra case for one of them.

The back page says that it was printed on October 10, 1967 at the publisher's own printing house, License No. 3032 TBTTCH/BC3/XB dated October 2, 1967

In xong ngày 10-10-67 tại nhà in riềng của Nhà Xuất-Bản Giấy phép K.D. số 3032 TBTTCH/BC3/XB ngày 2-10-67