Linhof quicklock tripod connector

QUICKFIX I
003874
Quick lock tripod connector, compact size for 35 mm rollfilm / video cameras. Solid all-metal design, camera retaining plate with 1/4" screw with Allen key. Retaining socket in Quickfix base: 3/8" with Reducing Bushing 1/4". Dimensions: 70x60x20 mm, weight 220 g.
ADAPTER PLATE
003875
(spare) retaining plate for 003874 with 1/4" camera screw for additional equipment. Weight 60 g.

QUICKFIX II
003876
Only the dimensions of Linhof’s quick change adapters are different but neither quality nor features. Quickfix II is a solid all-metal quick-change adapter for instant attachment of professional camera equipment and other instruments to the tripods. With 1/4" and 3/8" Allen screw and 1/4" and 3/8" tripod thread.
Dimensions: 100x60x20 mm, weight 320 g.
ADAPTER PLATE
003877
(spare) retaining plate for 003876 with 3/8" camera screw for additional equipment. Weight 110 g.