saw identification help

[Lkapon]

Hey Guys,
I have the ut's and serial numbers from the saws I picked up last Friday night. I don't think they are XL-12's at all but maybe someone can shed somelight on what they are.
1)UT 10045c Serial#2H2800028
2)model SXLAO Serial#04506908
3)UT 10045d serial#HP1250765
4)lot#E6302 serial#44564327
5th saw has no id marks on it. I would like to know what they are I believe they are SXL's and 1 SXLAO. Thanks in advance for any help.
Todd in NJ

[OBR]

I should also add, there is no difference between an SXL and an SXLAO. All super xl's came w/ auto oilers (which is where you get SXL"AO"). A quick way to tell Super XL's from XL-12's is bar oil fill location. Super XL's are up in front of the front handle bracket next to the fuel cap and XL-12's are back below the spark plug.