Yes, the rims are called COP wheels, the dog caps that came on those cop wheels have the little holes along the edge. Cop wheels were used on some f bodies know as super coups, etc. Those wheels were actually 15 x 8 not 7 wide.
Correct dog cap for 69 ply has "Plymouth" also the edge. Use what you like, a regular steel wheel will look correct. Like Scampman explains, the steel wheel can vary somewhat as far as the tabs etc, most of us go after the dia. and width wheel we want unless trying for the "show poodle' affect.
The dog dish comes in two sizes, the early and later styles. The center of the wheel determines which cap it will fit. If the center is the same , the later cap will fit both 14 and 15 in wheels. Say a steel wheel made in 69, the 68 up (or was it 67?) cap will fit both the 14 and 15 in wheel. Confused yet!!???? ha