Yes those plain metal rim cantles are still made, but they were also common much earlier. The pipers of the Cameron Highlanders began wearing sporrans with rims like that in the 1850's, and Other Ranks in the 93rd Highlanders were wearing them at that time if not earlier.

Of course back then they weren't chromed, but made of solid "white metal", nickel silver or German silver.

Dating is tough on some of that stuff, because for example the Cameron Highlanders pipers adopted their grey "Pipe Fund" sporrans in the 1850's and wore the same exact pattern up until amalgamation with the Seaforth Highlanders in 1959 to form the Queens Own Highlanders. So, the same sporran for 100 years! Actually the pipers of the QOH continued to wear the same sporran until 1994 (with a change of badge on the cantle, and the tassels changed from white to black, but the sporran itself stayed unchanged).