Observation binoculars - 10x70 SP Waterproof Model 5.1° Polo Prism IF Flattener Lens, Large Aperture - 1990-2000 - 日本 - Nikon
光学水准仪 - Nippon Kogaku (Nikon) NIKKO Level Model E Surveying Instrument - 1960-1970 - 瑞士 - Wild Heerbrugg
望远镜 - Wetzlar Telsex 6x24 / Goerz Trieder Binocle FAGO 3 1/2 / OptOmax Monokular 6x30 (ju102) - 1920-1930 - Hensoldt
望远镜 - Wetzlar 8x30 Sportglas 8x30 / Hartmann Porlerim 7x35 / Hertel & Reuss 8x45 6x LOT (ju104) - 1920-1930 - Hensoldt