Jonsered saw ID

[Junk Meister]

I have a Jonsered saw that looks so much like a 920 but it has a decomp on top of the cover (flywheel side and forward of spark plug). Did 930 have a decomp? I am getting ahead of details as I saw a serial # but that was yesterday and should have scribbled it down.. I Need to include it in this Post but My OCD/CAD has me asking questions and not giving ya'll the nitz 'n Gritts.
Certainly Not a 2094.
When did Jonsered first come out with a decompression valve?

 

[heimannm]

910 had a compression release.

 

[SCHallenger]

910 had a compression release.

View attachment 466515

Yup. I had a very early 920 right after the 910 was discontinued. The 910 did have a de-comp & the 920 did not. There were many times I was wishing the 920 had it!