One interesting bar obliterator seen and used in Selangor in the late 19th century is the 9-bar diamond obliterator. The usage of this obliterator, as recorded by Proud, was seen in Klang, Kuala Lumpur, Kajang, Kuala Kubu, and Rawang at different periods. Kuala Kubu (11.12.1890); Kuala Lumpur (18.8.1891- 14.4.1893); Klang (15.3.1892-6.1.1894); Kajang (18.4.1896-23.6.1896); Rawang (not recorded). One question that I pondered, since all of these towns had the same obliterator ordered on 20.5.1890, did it mean that it was all produced the same way? I have tried measuring the dimensions, and it seemed that each one is similar except for Kajang K1, which had longer bars at each ends. Selangor 1892, 5c blue, ISC#54 bearing the diamond of bars. Straits Settlements 1894, 8c Ultramarine, ISC#100. Here, the bars at each end appear longer and rather rounded, which corresponds to Kajang Proud K1. Selangor 1893, 1c green, ISC#51 also with Kajang K1 Regardless of its specific locality, h