These were from the estate of doll maker and costumer, Mary Lambeth.  

Panty   has  a waist  of  12" , unstretched. elastic and all are good.

Nylon  slip closes with  a  safety  pin  at back neck (not included). The length is 14" and chest is 14" 

The eyelet petticoat elastic still stretches but seems a  bit outstretched. 

Please ask any questions!