South Africa 1910 Natal Field Artillery OHMS Letter

1910 MILITARY MAIL: Official OHMS envelope postmarked Pietermaritzburg NO 29 used locally in the town bearing violet facsimile signature handstamp of Major WS Bigby. Addressed to Gnr W. Weddell again using the single line handstamp in violet of NATAL FIELD ARTILLERY in the address. Missing backflap. Interesting.