Made in large quantities by various makers, these were called "bicycle guns" (bicycling was a rage then, and dogs and muggers were problematic) or "suicide specials" (self-explanatory). Of course, they were relatively inexpensive, although complex and intricate by modern manufacturing standards. .32 and .22 rimfires were the norm. Black powder was also standard. They have almost no collector value, or practical value either, but they are kinda neat. :wink: