Where can I look for the gear Robert R. Johansen uses?

Find and submit the shells, heads, cymbals, hardware, drumsticks, and other instruments used by Robert R. Johansen.

If the artist is active on social media, check places like their Instagram feed and look for musical equipment they can be seen using.

You should also do a Google image search for things like "Robert R. Johansen studio" and "Robert R. Johansen live" and spot gear that way.