It is important to note that the production of these sorts of paraments was an important vocation and source of revenue for the Ursulines in Quebec at this time, no more so than in the realm of embroidery under the influence of Mother Marie.
This particular example today employs gold and silver thread with embroideries that utilize needle-painting embroidery techniques and a central medallion of the Nativity that is painted on linen.
A frontal such as this was likely intended primarily for use during the Christmas season, though evidently it could have been used at any time that called for liturgical white, and given that we are dealing with the Church in its infancy in North America, I think we can reasonably expect it likely was given the time and cost involved in producing such qualitative liturgical art; works that rival and equal anything being produced in Europe at this same period of time.