Vintage Black Gown with Orange Accents

1970s long straight cut black dress with orange interior trim on the side slits. Manderin style collar with jeweled details. Back zip closure.
Condition: excellent 
Material: unknown - no tag 
Brand: unknown - no tag 

Tag Size: unknown - no tag 
(Always check measurements) 
Pit to Pit: 17" 
Shoulder to Shoulder: 13" 
Length: 58" 
Across Waist: 14.25" 
Across Hips: 20" 
**measurements taken flat 
Model is 5’9 34/28/39 for reference