Book of Jaeger test-types for assessing visual acuity, arranged by Thomas Armstrong and Brother, manufacturing opticians of Manchester, 1860-1920 Book of Jaeger test-types for assessing visual acuity
Book of Jaeger test-type for assessing visual acuity, inventor(type) Professor E. Jaeger, arranged by Thomas Arsmstrong, Manufacturing Opticians of Manchester, 1860-1920 Book of Jaeger test-type for assessing visual acuity 1860-1920
Triangular bandage with illustrations of bandages in use, printed by Cramer of Hilden, designed by Prof. Eserck, drawn by Wittmack, published by Ges. Baumuroll Industries, c. 1900 Triangular bandage with illustrations of bandages in use 1890-1914
