The MGB-GGB connection track

The Gornergratbahn and the Brig-Visp-Zermattbahn had been incompatible for many reasons, but in some tim it was solved that cars' contents were not necessary to be loaded into GGB freight cars, instead building material o RhB ACPX Pullman-cars could be just shunted over to the GGB track in Zermatt and pushed uphill by a suitable GGB locomotive.