Working couplers can be a problem for early stock, as most commercial couplers are designed for the larger vehicles that developed later in the 19th century. Funnily enough, deciding on a coupler was one of the biggest challenges I found when I started modelling the 1840s, which is why I thought a separate post on the subject might be useful.
Most British HO modellers use Kadee couplers. They are robust, very reliable and they make shunting an absolute pleasure. But the HO couplers a