BOER CENSORSHIP: 1900 Envelope from an Officer POW in Pretoria (28 MRT 00) to England franked Transvaal 2½d tied by neat cds. Marked by censor with red crayon "G" (for "gezien" / censored). Endorsed "From Prisoner of War / Pretoria / SAR". On reverse Pretoria and Lorenco Marques transit marks and most unusually a pink ZAR "Geopend onder Krijgswet" censor label. F, some crumpling, nice cover.