Lanvin Blazer in Peach

Vintage Lanvin poncho-style blazer in a orangey pink Coral peach color. No size tags but given poncho style is flexible, fits like a US size 4. No material tag but feels like silk. Hook fastening at the top, but also a loop for a button that is no longer there, but comes with a spare sewn on the inside if you’d like to reattach (see pics). Otherwise no noticeable flaws, see pics thoroughly for condition.