Guards place wreaths and men watch the mummy of Ho Chin Minh preserved at Ho Chin Minh Mausoleum in Hanoi, Vietnam.

Ho Chin Minh Mausoleum in Hanoi, Vietnam. Guards place wreaths at the foot of the mausoleum. Men view the mummy of President of the Democratic Republic of Vietnam, Ho Chin Minh, preserved in the mausoleum. One of the sources of damage to preserved bodies is black spores. A laboratory technician experiments with means to eliminate black spores. A chart shows the position of black spores on face of mummy.