Dry transfers! Woodland Scenics brand Model Graphics, MG747, 45 deg., USA NO. Gothic White. If 1/8" = 6 inches in 1:48 scale, and 1/16" = 6 inches in 1:96, then you'll be pretty close using 3/32" high numbers for your 1:72 efforts. Remember to use the next largest size numbers to replicate the "26" at the bow. Because of the hull curvature, that figure is visually larger to account for the slope and still be 6" high, in the vertical plane. Check out the pics of Trepang and you'll see what I mean.
"If you ignore the problem long enough, it will go away. Even flooding stops eventually!"