21TPI 76/50 mm
12TPI 76/50 mm
32TPI 76/50 mm
21TPI 132/100 mm
12TPI 132/100 mm
6TPI 100/75 mm
6TPI 132/100 mm
18TPI 76/50 mm
10TPI 100/75 mm
15TPI 100/75 mm