JAPANESE OCCUPATION. OF PERAK. 1942 cover sent registered with, on the back, a Negri Sembilan 15c (SG J169) and a Pahang 8c (SG J241) tied by a PERAK / IPOH / YEBIN KYOKU 15.6.2602 datestamp. An Ipoh registration label is on the front of the cover along with an oval Japanese h/s. An interesting combination usage of Negri Sembilan and Pahang stamps on a commercial locally used cover.