Meiji Techno MA815/05 - Siedentopf Type Binocular Head (53mm to 75mm)
Binocular head - Siedentopf type, I.P. adjustment 53mm to 75mm, graduated diopter on left eyetube (23.2mm I.D. eyetube). Inclined at 30 degrees. Inverted image. (Included in Model MT4200D).