Concavity slides for V.D.R.L., B.J.L. and for kline test etc. Slide
is made out of superior quality plate glass. Non-corrosive with
bevelled and polished edges and corners. Size 75 x 56 x 3 mm. Each
spherical concavity is 16 mm. in dia. x 1.75 mm. deep having surface
of slide is frosted for notations. Each slide is packed in fine
velvet lined box.
A B C D E
Cavity 2 4