Pocket measuring microscope with reticle. New selected the models of 25X and 50X Pocket Microscope series, with incorporated scales into their lens barrel. The Reticle is cross hair with horizontal scale.

To focus the microscope, hold it so that the notch at the tip of the acrylic cylinder of the microscope faces towards you, place the center of the object lens above the specimen and while tilting the cylinder forward and backward with your eye on the eye-piece lens, fix the cylinder and adjust to the best angle which can give the sharpest image.