Possible Clues:

• Ground to get the sound of it at that time
• It gets sound and then gets soiled, perhaps
• Would such ware remind astronauts of home?
• Get sound at that time and get soiled, perhaps
• What gets sound gets soiled, perhaps, at that time
• Clay article in net
• Though perhaps soiled, able to get sound at that time
• Jug handle, for instance, at that time would be made of baked clay
• It's sound at that time but soiled
• Grounded?