A delicate feminine pearl with a floral pattern

I am selling a beautiful blouse. It is in excellent condition, with no defects. There is a spare button. The fabric is pleasant to the touch. Unfortunately, the information about the fabric composition has been washed off. Therefore, I do not know the composition. It is possible that it contains silk, perhaps also viscose and/or polyester. The blouse is 64 cm long and 58 cm wide at the chest.