Kinda hard to see, usually those older ones are a kinda push down then out motion.Do u see a hole in the latch that u can fit a screwdriver in?
try taking a pic w/o the flash and shut auto focus and focus it manually as best u can.
With all due respect John, I am the head of IT and I have it on good authority. If you type "Google" into Google, you can break the Internet. So please, no one try it, even for a joke.........It's not a laughing matter. You can break the Internet.