Yes, a period is used after a quotation that ends a sentence. In the provided excerpt, if the quoted text "...fine and rare and sterling..." ends the sentence, a period follows the closing quotation mark.
How to explain
For instance:
"He described the collection as '...fine and rare and sterling...'."
In this example, the period is placed after the closing quotation mark to signify the end of the sentence. This punctuation practice is consistent with standard conventions in English grammar when quotations conclude a sentence
Therefore,. Yes, a period is used after a quotation that ends a sentence