Stihl bar mount pattern??

[scallywag]

Anyone know what this one fits?.....There's no numbers/ pattern code on the bar.

 

[Gypo Logger]

Unusual for sure.

 

[R/C Pilot]

I just looked at a bar on e-bay that had the milled slot like yours but was the early stamped emblem. The box had STIHL ELECTRIC written on it. Hope this helps.