The Queen Cutlery Company has been manufacturing knives in Titusville Pennsylvania for over 100 years. The company opened its factory in 1902 and continues to produce knives in the same way now as they did in their earliest years.
Just received this one. A Queen City swell center. 3 7/8". Today it would be their 376 pattern.
A nice knife and would be even better if it didn't have bone missing from the pile side spring pin. Looks to be an old crack and has aged along with the knife. I'm always surprised at how well these old Queen knives hold up throughout the years. No wobble on both blades. This one was most likely manufactured in the 1930's.