Prometheus Unbound: A Lyrical Drama in Four Acts, With Other Poems

No book-club issue at this date. The dominant trap is the second issue sold as simply 'first edition' - technically correct (both issues are the 1820 first edition) but the corrected, cancelled-A3 state is the common one, and catalogs that say only 'first edition' without addressing A3 should be read as unplaced. Check whether A3 is integral or a cancel by collation, not by the reading alone. Also watch for copies bound without the half-title and terminal advertisement leaf, and for later collected editions of Shelley's poetical works (Mary Shelley's 1839 edition and after) offered as first appearances of the poem.