Anyone ever see any of these SW gauges?

I bought this gauge at a swap meet and i cant find a single one that matches it.

 

Looks like RAC.
Either that, or ya got the only one.

 

With a SW logo on it???

 

No help, but yup , i remember seeing that style gauge somewere maybe around 1970 or so??

 

Thanks guys, it's different but I wish I had a complete set to go with it because it's not bad looking at all.

 

don't they call those the "green line" series - which yes I think 70's to early 80's

 

Blue line tachometer on the big auction site