I was perusing R. Yechiel Michl Epstein's edition of Psalms (Frankfurt 1723) and I noticed the following on the last page:
After the ma'amadot additions in this book, after the table for prayers at the very end, is a list of the verses recited aloud by the congregation at the megillah reading on Purim. The megillah itself is not printed in this book. The explanation I could think of was that in 1723 printed humashim or Bibles which included Esther, much less personal megillah scrolls, were sufficiently rare that many people - presumably women, especially (?) - could be present at the megillah reading with no text to follow along with.So here, at the end of a book of Psalms, it was deemed appropriate to list these verses for those who had their Psalter with them, but no Esther so that they could say them aloud with everyone. What do you think?