UNTESTED , battery compartment very clean
Olympus Quick Auto 310 Shoe Mount Flash + Olympus Bounce Grip
Olympus Quick Auto 310 Electronic Flash Unit. Working. For OM-1 OM-2
Olympus Quick Auto 310 TTL Electronic Flash Fully Tested UK Dealer
Olympus Quick Auto 310 TTL Electronic Flash OM System Shoe 2 Vintage Flashgun
Olympus Quick Auto 310 TTL Flash Unit - With Original Box
Olympus OM Quick Auto 310 Flash, Bounce Grip, Auto Cord, 2 X Instruction Books
