Zeiss Ikon Focusing Screen Set f. Contarex x4 in Box

1x focusing screen 20.1310 with micro-prism ring and split-image indicator (for lenses 25-180mm), focusing screen 20.1312 standard, focusing screen 20.1318 with micro-prism spot, focusing screen 20.1320 focusing screen with micro-prism spot with small cleaning marks in plastic case with tweezer and brush.