This is a used, vintage condition set of 4 milk glass ashtray in original box.   They each advertise a Beetle Bug and say THINK SMALL.    They are about 3" by 3".    They do have some DARK straw marks that are NOT CRACKS BUT ARE STRAW MARKS IN THE GLASS ITSELF.   PROBABLY JUST AGE MARKS.  Straw marks are common in old milk glass.    I've shown many photos.   These are SOLD AS IS...   so see all the photos.