Narrow gauge railroad spikes probably used on mining track. Square nails are possibly from same site. Part of Doyle Hornbaker collection and probably belonged originally to Tom Beasley, Niwot cowboy, who had hard rock mining experience (according to Don Spangler).
Narrow Gauge Railroad Spikes
Object Name: Railroad Spikes & Nails (Rail Transportation Accessory)
Accession No: 2006.25.01