On this day, Raja Muda Yusuf, then regent of Perak, was required to put his signature so as the Resident (Hugh Low) could deem the state documents authenticated, as per instruction from the Colonial Secretary in Singapore. Prior to this, any documentation approved was deemed authenticated by virtue of Raja Muda Yusuf’s chop (or stamp).
Source: Council Minutes – 26th June 1878. In Harrison CW, ed. Papers on Malay Subjects. History (Part III). Council Minutes Perak. 1877-1879. Kuala Lumpur: FMS Government Press; 1908. p14.