Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Passage: The Mark IV yakavakwa nevagadziri vatanhatu: Metropolitan (muvaki wevazhinji), Fosters of Lincoln, Armstrong-Whitworth, Coventry Ordnance Works, William Beardmore uye Company uye Mirrlees, Watson & Co., nekugadzirwa kukuru kuri muna 1917. Murayiro wokutanga wakaiswa nokuda kwamatangi 1.000 naMetropolitan muna August 1916. Yakanga yadzimwa, ndokudzorerwa uye ipapo kuchinjwa pakati paAugust naDecember 1916. Vamwe vagadziri, vakabvumirana kuti vagadzire matangi asingasviki 100 mumwe nomumwe, vakanga vasingatarisirwi nokurwisana kwaiitika pakati paStern neHofisi yeHondo.  Mubvunzo: Vagadziri vakasiana-siana vangani vakavaka Mark IV?
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