My Sweet Mate Kumya's 30th Anniversary jsk in the ivory colorway (looks much more yellow than ivory) I am the first owner and it has been worn about 5 times myself.
Pet friendly, Smoke-free home

No noticeable marks or damage, no discoloration as far as I can see.
***Sash and headbow not pictured, but included. I can provide pictures upon request!

Measurements from Lolibrary:

Bust

87 ~ 98 cm (34.25 ~ 38.58 in)

Length

90 ~ 94 cm (35.43 ~ 37.01 in)

Waist

77 ~ 87 cm (30.31 ~ 34.25 in)

Material

cotton Buckingham (100% cotton), polyester lining