D@mn. Not even in NOLA?
A surprising amount of pre-ban absinthe rode out the first half of the 20th century in Spanish or Swiss wine cellars (untouched by two world wars); the stuff still pops up for sale in the collector forums.
Jade 1901 is hailed as one of the most authentic modern expressions (by people who have pre-ban stuff to serve as a comparison). Old Absinthe House should have a bottle of that behind the bar.