What center pin fits in a Iver Johnson 55?

The Iver Johnson Model 55 typically uses a center pin that is specific to its design. For accurate replacement, it's best to refer to the manufacturer's specifications or consult a gunsmith familiar with Iver Johnson Firearms. Additionally, sourcing parts from reputable dealers or checking with collectors can help ensure you get the correct fit. Always ensure that any replacement parts are compatible with your specific model for optimal safety and function.