on piece 2c. on 3c. black and sepia with variety ovreprint double (partly erased as normal) with another 2c. on 3c. and 10c. on 16c., all cancelled with "BRUNEI" c.d.s. in deep blue on 1906 (5 Dec.) envelope front to London; the error with one blunt corner and a few fox marks, nertheless a very rare franking. Photo