Helios 28 Hot Shoe Flash Gun- for Olympus OM10 20 30, Trip etc WORKING

Sunpak Auto 33 Flash Unit-Compatible With Olympus OM 10/20/30 WORKING

Sunpak Auto 20 Flash- For OM10 20 30 4ti Trop etc.. Tested Working

Speedtron 2 Electronic Flash gun Ideal for Olympus Trip OM10 20 30 WORKING

Sunpak Auto130 Flash Gun with Multi-angle for Olympus OM10 20 30 etc WORKING

Vintage Miranda F-2A Flash - Tested and Working For Olympus Trip OM10 20 30

Sunpak MX118 Flash- Compatible With Olympus Trip Cameras WORKING

Vivitar 45 Electronic Flash Gun for Olympus OM 10 20 30 Trip etc WORKING