Dirty Harry "Rawhide", was responsible for creating Callahan's distinctive old-fashioned brown and yellow checked jacket to emphasize his strong values in pursuing crime. Filming for "Dirty Harry" began in April 1971 and involved some risky stunts, with much footage shot at night and filming the city of San Francisco aerially, a technique for which the film series is renowned. Eastwood performed the stunt in which he jumps onto the roof of the hijacked school bus from a bridge, without a stunt double. His face is clearly visible throughout the shot. Eastwood also directed the suicide-jumper scene. The line, "My, that's a big
Dirty price by the dirty price to arrive at the clean price. The accrued interest is based on the day count convention, coupon rate, and number of days from the preceding coupon payment date. The clean price more closely reflects changes in value due to issuer risk and changes in the structure of interest rates. Its graph is smoother than that of the dirty price. Use of the clean price also serves to differentiate interest income (based on the coupon rate) from trading profit and loss. It is market practice in US to quote bonds on a clean-price basis. When a bond