Dead Stock 1950s Longline Bra B90

New old stock longline bra from the 1950s, with front and back button closure.
Brocade, with satin straps.

Measurements
• Circumference 100 cm,  
• Circumference measured at the bottom 89 cm.
• Side length 10 cm
Size 100 (marked in bra).
Approximate size B90

In very good, unused vintage condition, but has some aging from storage, and there's a brownish spot on the inside (see last image).