Punch, or the London Charivari, Volume 1 Complete. This omnibus edition takes all 24 of the issues from the first volume and adds an introduction and an index which is linked to the individual issues.
The introduction is very cool, it was written about 20 years after the fact and so explains a bit about the political situation at the time of the original publication — essential for getting some of the jokes.
Thanks to David Widger for his patience and assistance!