Observation binoculars - Chevalier-Paris stara lornetka operowe z mosiądzu i masy perlowej - 1920-1930 - France
観察用双眼鏡 - Farlux 8x30 Ww Wide-Angle Monocular & Stand Loupe - Original Case & Stand Attachment - 1990-2000 - Eschenbach
オペラグラス - Vintage German Oculus "Aida" 2.5x30 Opera Glasses with Original Golden Case - 1950-1960 - Germany - Ocslus
オペラグラス - Vintage Eschenbach Optik "Manon" 3.0x Opera Glasses / Theatre Binoculars with Original Case - - 1970-1980 - Germany - Eschenbach Optik
オペラグラス - Rare Vintage Emil Busch "Multinett" D.R.P. Green Leather Opera Glasses with Pouch - Germany - 1930-1940 - Germany - Emil Busch
オペラグラス - Vintage "Moon-Light" Snakeskin Style Opera Glasses (3x) with Matching Pouch - 1920-1930 - Moon light
Monocular compound microscope - KZ-1 (Serial No. 712152) met kist - 1971年 - Japan - Kyowa Optical Co. Ltd.
オペラグラス - Vintage Italian Opera Glasses / Theatre Binoculars with Mother of Pearl – Marked "MILANO" - 3x - 1950-1960 - Italy - milano
オペラグラス - Vintage French/Japanese Mother-of-Pearl Opera Glasses (2.5x) - Modèle Déposé - 1950-1960 - Japan