Clark & those few others who might be interested,

M&StL Specification No. 57, dated March 23, 1931 says in part,

"PAINTING
"All joints where metal laps on metal to be painted with one (1) coat of cement before assembling. After assembling, entire underframe to be given one (1) coat of car cement. Outside of end sills and side sills to be given two (2) coats of good quality black paint. Top of floor stringers to be given one (1) coat of paint before floor boards are applied."

"STENCILING
"To be in accordance with requirements of Railroad Co."

Gene Green