Confusing sandwich coupon

200712211133 Tim asks: "Does ANYONE understand this offer? I showed it to several college-educated people, and not one of them had any idea what item had to be purchased, or what the customer could expect to receive." Link

Previously on Boing Boing:
Poorly thought-out label: Hershey's (non) chocolate milk
Silly shipping label for wine
Bad info-graphic: Ikea shopping hours chart