1990's Cashmere and Silk Metallic Tweed Blazer by Ralph Lauren Purple Label.
You really need to feel this on to appreciate just how luxurious it feels AND you can roll out of fall right into the holidays with this beauty. She sells herself so we are sort of at a loss for words, but it is a classic piece you need in your wardrobe. The end.
This single breasted beauty is fully lined in golden silk and comes with original price tag of $2, 498. 00.  There is a single rhinestone closure button in front, and 3 decorative rhinestone buttons at each cuff. Tag size 8. 

Modern Size: M
Fabric: Wool, cashmere, nylon, silk 
Condition: Mint
Shoulders: 16"
Bust: 36"
Sleeves: 25"
Waist: 32"
Hips: 36-40"
Length: 26"

This item is sold from an excellent, highly rated vintage boutique.