used Block of Four 2c. on 8c. black and vermilion, block of four (slightly trimmed perfs. at top) on piece and cancelled by Brunei c.d.s. in violet. S.G. 13, #260

细节
used Block of Four 2c. on 8c. black and vermilion, block of four (slightly trimmed perfs. at top) on piece and cancelled by Brunei c.d.s. in violet. S.G. 13, #260