Here are 2 window stickers from the same 1972 Charger SE, the first is based on "tentative pricing" the second has adjusted prices.

model year Lynch Rd. "2A"

07/17 SATURDAY (717) - date on bottom of window sticker #1 WHAT DOES THIS DATE REPRESENT?
07/21 WEDNESDAY (721) - "scheduled production date"
07/28 WEDNESDAY (728) - date following DESTINATION CHARGE window sticker #2 WHAT DOES THIS DATE REPRESENT?
09/28 TUESDAY (928) - date on bottom of window sticker #2 WHAT DOES THIS DATE REPRESENT?

A27 - routing code