File:Principle vernier.png

Wikipedia article on the vernier scale {{msg:GFDL}} This image is a derivative work of the following images: File:Vernier_pied_a_coulisse.png licensed with Cc-by-sa-3

two eye-pieces, rack motion tr> telescope, and tangent screw motion to vernier. It will widely separate the D lines. ^OHH BROWNING, OPTICAL AND PHYSICAL

the Indian Survey, d iunished with micrometer microscopes, inetead of verniers, for I 1 S n g the graduations. 1-, ? ~ eemployment of such instruments

Si-ohm Rheostat*, with dial.... 1.78 21-plate low loss Condenser,with Vernier dial .................................. Mi Western Csnedn Radio Supply

10-ohm Rheostats, with dial.... 1.75 22-plate iow losa Condenser, with Vernier dial .................................. 6.00 Western Canada Radio Supply