right  corner of their windshields. This is a reflection of the wartime  rationing of gasoline. Gas was rationed primarily to save rubber,  because Japan had occupied Indochina, Malaysia, and Indonesia.  (There was a shortage of gas on the East Coast until a pipeline from  Texas was constructed to replace the transport of crude oil by sea.)  The B sticker was the second lowest category, entitling the holder  to only 8 gallons of gas a week. Marlowe seems to use more than one  weeks allotment during a 72