A more complete mirror description uses a four letter description. P or PW Power Window M or MW Manual Window 3. A four-letter description is usually the mirror type. Nom designates no mirror on door. 71K would indicate approximately 71,000 miles.
Most glass uses a two-digit code to describe the tint and shade of the glass.
The first letter designates the glass tint and the second digit represents the type of shade. Usually side and rear glass is clear or tinted only and not shaded but may have an additional privacy tint. The glass code may also be included with doors hatches etc. to describe the type glass left in other parts. Usually a number followed by a K is the number of miles on the Engine times 1000.