A Brass Diopter, by Lindeteves-Stokvis, Ca. 1930. In original wooden case. Measurement: 7 x 25 x 19 cm. catalogue Note: NV Lindeteves-Stokvis is one of the five Dutch conglomerate before World War II. Four other companies are NV Rotterdam Internatio, NV Borsumij Maatschappij, NV Geo Wehry, and NV Jacobson van den Berg. They master the business network of trade, production, services, industry, and distribution in a number of countries. Lindeteves headquartered in Hyderabad and has branch offices in major cities in Java. One of them was quite well known in Surabaya. There, the office of Lindeteves-Stokvis was designed by the Batavian architectural firm Hulswit, Fermont and Ed Cuypers, and was built in 1911. Towards 1960 Lindeteves-Stokvis and Firma De Vri'es Robbe, both based in Semarang, merged into NV Constructie Werk Plaatsen De Vri'es Robbe Lindeteves, abbreviated as "Linde Robbe & Co." which is engaged in the manufacturing of steel construction. In 1962 the company was nationalized into a state company with the name of Amarta with the same line of business. In 1972, the national company status was changed to the Company of Amarta Karya (Persero) which based in Jakarta. Since that time the company were expanding its business to the field of civil construction, electrical and mechanical, as addition to their hitherto core business: steel construction. Literature: Estimate: 50-100