Disassembly help please

[Oldfast]

I've a number of these American double-sided wafer locks. The two in the middle are Series L50. All of them DO have a set screw underneath the shackle...
so I'm assuming the cores CAN be removed. Yet for some reason (probably some over-looked simple & obvious reason), I've been unable to do so.
Maybe there's an additional wafer toward the back that I should be looking for when trying to remove the core?

As always, your answers are very much appreciated. It'd be nice to not only get these cleaned up a bit...
but I'd also like to document one of them to add into the archives of Oldfast's gutted locks

[Riyame]

Give me a few minutes and I should have some stuff for you..

[Oldfast]

Good ol' Eric...lol... he wastes NO time!

[Riyame]

And pmed

[Oldfast]

HahaAAA! PRESTO! Excellent.

After hitting the lock a couple times on the table, I looked through the hole underneath the shackle and could see the retaining pin had dropped.

I love it around here. Ask and you shall receive Thanks for takin' the time Eric. Much appreciated.

[Riyame]

Thank mastersmith for sending me the book that those pages came from