The set consists of an elementary folding microscope where the body and tube (which has a draw-tube) are stored separately within the case. While the microscope itself is unsigned by the maker, the objective lens is marked Bausch & Lomb Opt. Co. 16mm, 10x. The brass objective appears to be late 1920 - early 1930 vintage. The eyepiece is marked 5 and has a reticle consisting of a grid of squares. Additionally, the set has a vacuum chamber that has mountings within its center to hold a microscope slide. A large syringe is provided which is used to create a vacuum. Within the case is a wood box with blank microscope slides, a metal container for cover glasses, and one for soft porous rings. The purpose of the vacuum and the use of a porous ring and cover glass would be to create a thin layer of blood within the ring mounted on the slide. There are three vents to release of the vacuum. The caps on these vents are linked together with a chain allowing them to be removed simultaneously thus allowing air intake uniformly along the length of the slide. There is a cardboard box with bleeding needles. The gauge of the needles is large indicating they were most likely used for getting blood from large animals. Given the portability of the set, it seems likely it was used in the field by a visiting veterinarian for blood analysis.