For SYSTEM-V enlargers.

Simple fitting with two coin screws on the enlarger head lower part 4568.

4449: for formats up to 6 x 9 cm (2.4 x 3.5 in.).
Fits all enlargers made from 10/94 on (05 series).

4542: for formats up to 6 x 6 cm (2.4 x 2.4 in.)

4443: for formats up to 24 x 36 mm (35 mm)