No rivets. I think the purpose for the "rivets" were to hold the slab sides on. They were actually either pins or bolts in most cases...Either way> That's a "no" at the Randall shop.
With todays epoxies simple pins are all that's needed. The pins keep the slabs from "shifting" if knocked sideways, while the epoxy (if used properly, and the inside of the scales and the knife tang are roughed up a bit) does not let the scales turn loose.
Best, Capt. Chris

PS: Here's a "SCARCE" Model #10-3". The scales are pinned and epoxied at the shop. The scales are old NASA brown G-3 that was left over from all of the Challenger Mission Memorial handle material. The shop made this knife about 3 years ago. (The "Mission Memorial" project has taken a good bit of time to accomplish, as you can see)...CCS