Possible relic found? It might be "1st" class; a 3" high metal cross with a flat round container of a liquid at cross beam This has some lettering surrounding it. A male figure in "bibical dress" holding a tablet(?) is on the reverse, several symbols next to him and EVSINOBITVNRO PRAE SENTIAMVNIAMVR (what I can make out) written about the image. Three small holes at foot and hands position may have held a gem or stone originally. Any ideas? I doubt this is a treasure. I came across it in my husband's what-not drawer and have no idea where it came from.
The inscription on the cross is common of a Saint Benedict Medal

Eius in obitu nostro praesentia muniamur
May we be strengthened by his presence in the hour of our death
St. Benedict Medal (Wikipedia)

And the person in Biblical Dress is probably St. Benedict of Nursia, the founder of the Benedictine Order, an ancient order of religious brothers from Italy.

Unless the liquid contained in it was blood, it's likely as not that it contained Holy Water.
It might well be a 3rd degree relic (i.e. a sacramental touched to a 1st degree relic), but it's clearly a sacramental of some sort (i.e. a blessed item; not something that should be sold).  I wouldn't think there'd be any reason to have an unblessed container of liquid in a holy medal.