How old can a husqvarna Rancher 450 be?

[Bigeclipse]

I am trying to sell a Husvaqrna rancher which I bought used (in excellent condition). One potential buyer asked me how old the saw was. Is there a way to tell? If not, when did the 450 series even come out? Thanks!

 

[rupedoggy]

Look at the serial number

 

[cuinrearview]

I'm pretty sure all 450s are new enough that they should have the actual year of manufacture on the SN plate.