Can Someone tell me what this head belongs to?

It's a Glo Bee. No longer made, offered high performance, very unreliable, worked well when they worked. They were offered in 3 styles. Racing, Sport and one that slips my mind. I would have to go dig out mine and make the comparisons. They fit Cox engines and were used mainly on TD's. They will work on the integral type bees as well. They have a flat coil and this can quickly become compromised if it's shorting out or there's a lot of carbon on it. A Cox engine depending on style of Glo Bee insert requires 5-7 head shims.