The two pictures above and those below are how the Model 1866 Winchester "Yellowboy" rifle was found. We contacted Cody Firearms Museum and they said the serial number 36637 was an early 1866 Model, that serial number paperwork was destroyed in an early fire in their facility in the late 1950's. The barrel is rusted to the point that the original Winchester production lettering cannot be seen. The bronze alloy receiver has oxidized with a dark patina. The wooden stock has disintegrated in places. This is attributed to exposure over time, to years of the intense desert heat, wind and water. It is believed the rifle was being repaired or had been used to repair another 1866. However, that information is known only to the Apache Warrior that hid the rifle in the canyon where it was found.