Owned this since I was teenager, have used but is in nice condition, better than it looks in the photos. No battery leakage.
Olympus T20 Shoe Mount Flash For Olympus OM-1, OM-2, OM10, OM-4 OM Series
Olympus T20 Shoe Mount Flash
Olympus T20 Shoe Mount Dedicated Flash for OM10, OM20, OM30, OM40, OM1N, OM2N
Olympus T20 shoe mount flash - tested working off camera - **no battery cover**
Olympus T20 Electronic Mount Flash For OM1 OM2 OM10 OM20 + With Case - Untested
Olympus T32 Shoe Mount Flash
