JCM 33a & 33b: 1958 Yamakatsu Upper Left w/o Yamakatsu Symbol on Back & w/ Yamakatsu Symbol

JCM 33a and 33b are the same, except JCM 33b has a Yamakatsu Symbol on the back. (This is similar to JCm 31b, but in that set, the differenes are labeled as Type 1 and Type 2)
500968 Nagashima

512978 Nagashima

673465 Nagashima

890018 Nagashima