A Mark I Springfield with a Pedersen Device, magazines, and the metal device carrying case would probably bring that price, or more, as there are very few of them around. Not so the Mark I itself. I have seen quite a few of those. Virtually all Pedersen Devices were destroyed back in the 1930s, but a few workable ones were built from scrapped demilled components. Few may know Pedersen Device prototypes were also made for both the Russian Nagant and the U. S. M1917 Enfield. The war ended before that project took off. Pedersen ammunition is fairly common in collector circles.