In our first installment we presented two of Tom Mix's great Proto48
steam locomotives, a 2-8-2 and a 4-6-0. We are adding photos of Tom's
CB&Q M-4 class 2-10-4. Like the previous locomotives, the M-4 is scratch
built using brass, steel and nickel silver. You will find a number of
commercial castings on the beast but the vast majority of the work was
done using basic raw materials.