Student Polarimeter Half Shade DR 191

We are offering Student Polarimeter DR 191 ( Half Shade ), Analyser brass scale graduated from 0-360 deg. or 0-180 deg. with vernier reading 6" and accomodates a 200 mm glass tube. It is packed in a card board box. Student Polarimeter DR 191-a (BI-quartz) Analyser brass scale graduated from 0-360 deg. or 0-180 deg. with vernier reading 6" and accomodates a 200 mm glass tube. It is packed in a card board box.