It's condition is good for the age.
Marked as a size 40/42,please do go by the actual garment measurements as follows:
Chest/Bust: 47" / 120 cm Underarm: 20"/ 51 cm Centre Back: 33" / 84 cm
Chest/Bust: 47" / 120 cm
Underarm: 20"/ 51 cm
Centre Back: 33" / 84 cm