Assertion: mosaic's portrait | /r/AtLocation | the mosaic
Facets:
value: after its initial production
type: TEMPORAL
Source sentences:
text: It is evident that 71 portraits were added to the mosaic after its initial production and probably before it was donated to the Library: other photographers' work is included, portrait styles and photographic paper stocks differ significantly and some portraits show subjects many years older than they were in 1872.