Vintage tribal Coins Dao women tunic dress in Cao Bang area,north of Vietnam store

Vintage tribal Coin Dao women tunic.
Age is over 30 years and still very good condition
These has a tunic richer decoration than their Coin Dao group in Mai Chau area.
On the front,the long thin collar is made of appliqué stripes bordering pink embroidered cotton weave stitches,The two front flaps and sleeve cuffs are bordered by stripes of green applique.
The tunic back has same borders as the front with a store few more designs on the shoulders,at the waist is more embroidered also,a motif repeated at the bottom.
Measurements
Length 110 cm
Sleeve to sleeve 130 cm
Chest 92 cm-106 cm
Arm length 36 cm
Underarm width 32 cm
Armpit to armpit 56 cm
Weight 430 grams