Focusing : Sensitive focusing, done by rack and pinion arrangement. Revolving arm provided for moving magnifying lens over full stage area. Stage : 85mm x 75mm with glass plate. Illumination : A plano-concave lens fitted in fork for light reflection. Optics : 10x & 20x EyepiecesOLYMPUS (DM) Pattern complete with metal fitting and special eye piece brass mounted 10X, 20X. Baker type base in Plywood box.