Originally Posted by Aristides
How would I figure out whether they are staked in?
I don't even know what this means.
FWIW, "staking" is the fixing of two adjoining parts from moving past each other via placing a small, sharp-edged tool at the juncture of the two parts and delivering a heavy enough hammer blow or press pressure to displace a small bit of metal from each part into the other part.
The "stake" mark looks like a small punch prick or squared divot in the metal at the seam/juncture (there may be more than a single stake for each set of parts).