I asked for some help to find this earlier, anyway after much searching I found it. It's an epigram written by Sir Thomas More to his friend Jerome Busleyden. In it he reflects on what it means to possess objects from classical antiquity. I found it quite moving. It was composed in Latin so doesn't scan brilliantly in English.
What Rome once upon a time owed to her leaders, all those
leaders, Busleyden, owe to you. Rome was saved by her
leaders; you preserve Rome's leaders, now that Rome is dead,
for with devotion to antiquity you seek out and collect the old
coins which present the features of emperors or of men
famous in imperial times or earlier; and these coins you
reckon your only form of wealth. Now when thick dust
conceals their triumphal arches, you keep the names and
features of the triumphal heroes. The pyramids are not such
memorials to their noble dead as your coin-box, Busleyden,
has now become
I also found the article it came from very interesting
http://www.thomasmorestudies.org/mo...ges49-66.pdf