What is information on a model 2-x self-cocking safety rifle made by Iver Johnson Arms Cycle Works Fitchburg Mass?

The Model 2X was made from 1932-55. In 100% condtion it is booked at $175. The Model 2XA, with Lyman No. 553 receiver sight, ivory bead, swivels and sling, books at $300 in 100% condition. Add 25% for factory checkered stock.