Are these original beauty rings?

[HOTFUN]

Actually those are correct 1st design trim rings with 4 attaching point clips. The 2nd design 1976 on were the 12 point attaching style as Keith has pictured in his truck.
The N67 rally wheel option appeared later as an option during the 1973 model year and had several distinct differences until the 1978 models came out. As per my 1977 print parts book the trim rings with "4" clips were K10 models and Blazer 1973-1975. 2nd design used from 1976 on. The early caps were also taller at 4 7/8ths versus the later caps 1976 on at 4.25". This was because GM only had used full closed caps with insert medallions for GMC and bowtie on all four wheels covering the full time 203 cap. Then in 1978 GM made the rear closed caps only with the new 4x4 medallion. I believe the few 205 gear drive systems with spicer knobs were not available with N67 wheels due to no open rally wheel caps on the scene till 1976. All caps from 73-77 were painted trim black around the base not silver as all later ones were till end of production. Also of importance was all the early caps used 1/4" bolts/ casting holes and the 1978 on wheels were made with silver base color and used 5/16 for the mounting screws/ casting holes. GM also in 1978? started making the N67 15x8 rally wheel with cap mount holes drilled at 1/4 " and alternating 5/16 holes to mount either size GM caps. All factory screws were self tapping but were given seperate part # for either size in the late 1970's. I've done a lot of research on the early N67 rally wheels. Here is the GM Parts Book info for my basis on 4 clip 15" trim rings in group 5.871 for the trim ring info and years used.