Original 1977 Led Zep Concert Tee - $100 (Lake Havasu City)

I purchased this tee-shirt at the Led Zeppelin concert held at the then 'Los Angeles Forum' in 1977 and have had it in my closet ever since.
As you can see, it has the year on the shirt which reproductions of the Swan Song label do not.
It is a ladies size 'small' and in very good condition for being 50 years old.
Time to let it go! $100 or best offer.