Isn't Loy's Toys still around to ask them?
It looks like some sort of relay board with three relays, bunch of diodes, fairly small value electrolytic caps (judging by their physical size) and what looks like 10 ohm resistors. Unless there are some on the bottom side, I don't see any active components (like transistors or ICs).
No idea about its intended purpose other than that it is probably some sort of morel RR circuit.