jugate

adj

1. (not-comparable)Forming a pair.

noun

1. A portrait which depicts two side-by-side subjects with relative proximity.

   “More than 50 celluloid and lithographed tin political jugates [i.e., pinback buttons with jugate portraits] made since 1896 sold at three different summer auctions […] You can find jugate trays, posters, badges and ribbons, too.”