Yashica 35s

i received another yashica 35 GSN. this time it is the hong kong version. and now that i have two, i thought that it was ok to open one up.
the hong kong gsn's shutter release button is stuck, anyway. with the help of matt's website i did my major overhaul.

it was corroded all over.
but the baseplate was in mint condition.the plunger got cleared when i turned the screw ccw thereby loosening it a bit and getting the lever out of the way. and the shutter button started to work. it was so easy!!! but in the process i cut the flash sync wire. and since we have been internal refugees. i had to get back home to get my soldering gun and iron to fix the problem.
i also did some cleaning. the viewfinder including the patch came out clearer. and with renewed confidence, i opened the other yashica. but i still wonder where the yellow patch is. i can only guess where it is. and so, here are two yashica 35 GSNs ready for light proofing and shooting. the viewfinders are clear. the patch in the japanese GSN is murky. now where are my light seals? we just moved house temporarily because the old house is undergoing repairs and everything is in boxes still.
and i must say this was a big help: http://www.mattdentonphoto.com/cameras/electro_inside/index.html