Object: pathological set of twelve telescope "double achromatic" object glasses, in mahogany case 11 3/8" x 7 1/4" x 19/16" no.1 under corrected for colour, no.2 over .. .. . . no.3 under correction for aberration, no.4 over .. .. .. no.5 coma free type, no.6 definition marred by veins, no.7 axial astigmatism, no.8 zones of aberration, no.9 axial coma, no.10 definition marred by eccentric colour due to bad edging, no.11 strained in the cell, no.12 correct, ordinary type