BS 5550-2.11.2:1980 Cinematography. 16 mm film. Spindles - Specification for dimensions of precision grade spindles for 16 mm cinematograph equipment and telecine machines
1970BS 5550-2.11.2:1980 Cinematography. 16 mm film. Spindles - Specification for dimensions of precision grade spindles for 16 mm cinematograph equipment and telecine machines
1970BS 5550-2.11.2:1970 Cinematography - 16 mm film - Spindles - Specification for dimensions of precision grade spindles for 16 mm cinematograph equipment and telecine machines