What are the literary devices used in this poem?

The lines are iambic, metaphors would be "heart out of the bosom", meaning "love", "paid with sighs" because a sigh is not coin, but is here used as if it were, the same goes for "rue", which is also "irony". Rhyme to the point of lyric, inverted or fabricated word usage, as in "one and twenty" instead of "twenty one", which was done to keep the iambic lines moving along. Alliteration: when was one wenty, crowns pounds guineas (yes, the "s" creates sibilance as well as the "own" sounds in the first two of the series), to talk, heart out of, tis true tis true. Personification...to a certain extent, only as applies to giving form to ideas such as "rue", "sighs" and "fancy".