Help identify this chainsaw

[440Duster]

Hello everyone I recently purchased this chainsaw and was wondering if anyone could provide any information about it?

It appears to be an off shoot of a Mono (I can't read the clutch cover sticker, maybe Tillitson-Something-Line ?

The Identification tag only Reads:

RL65 1503D

Air Cleaner cover just says 6hp


It needs work and some parts are missing but I put some mix right down the intake and it fired on the first pull

Thank You for any and all Help and for your time.

 

[pioneerguy600]

I think you are on the right track, def looks like a Mono of some sorts.

 

[capetrees]

https://www.arboristsite.com/community/threads/antique-saw-thread.128393/

 

[Modifiedmark]

I'm pretty sure this is a Jet Star labeled Mono SL series saw. Seems the sheet metal cover over the cyl head is missing.