I have a memory dump from a 3 EPROM version - unfortunately that probably isn't much good for you.
When you say "corrupted", what do you mean and how do you know? If it reads all FF it's probably toast, although there is a chance it was always blank and just put there as a filler. If not, it may be possible to read it at a lower VCC - try putting a diode in series with pin 24 to drop the voltage by 0.6V. Then try it with 2 diodes.
<edit> just to expand on that ....
EPROMs work by trapping some electrons in an insulating layer deep inside the chip - this is called the stored charge. The detect threshold, ie how much charge you need, is proportional to the supply voltage. So if (for example) it's 50%, then at 5V the stored charge in the gate must be more than 2.5V. When EPROMs are programmed, the VCC is often raised to 6V - this is not related to programming, but to verifying. If a cell verifies at 6V, then it has a safety margin at 5V. The trapped charge leaks away over time (time measured in decades) until eventually it falls below the threshold for VCC = 5V. So often, when an EPROM is old and losing its charge, if you lower the VCC below 5V, the charge is higher than the threshold again and it can be read.