Overhead irrigation in California

Negative contained no production date or credits.; At 213 ft., the film becomes upside-down and switches to the end title frame. It then goes backwards (and upside- down) to the part where it left off at 213 ft.; Pacific Film Archive collection; non-circulating. CBPF.; Describes overhead irrigation processes using the Calco [California Corrugated Culvert Co.] Spi-weld pipe.; Silent with English intertitles.; PFA 1604-01-3821. COPY-SPECIFC DESCRIPTION: 1 reel of 1 (9 min.) (327 ft.) : si., b&w ; 16 mm. neg. CONDITION NOTE: Last checked: April 29, 2002 scratched.