Odeuropa's "Liberty Smells" card handed out at the American Historical Review conference. The scent is sprayed onto the card and has a metallic, musty, and bronzey odor reflecting the actual Liberty Bell.
Odeuropa scratch-and-sniff card provided with the American Historical Review 127.2 (2022). The scent features a reconstruction of the smell of Helena Schermar's gloves from her 1630 portrait. https://doi.org/10.1093/ahr/rhac150