Does anyone have an idea what TKE100L-Spec stands for?This is on my serial number card for my Heavy 10.Also what is the purpose for the compound base being graduated 360 degrees?This is a 1967 with 41/2 bed,hard ways,LOO spindle,taper,& also came w/metric gears.It came off of a military truck,and is in like new condition.I have all accessories that came with it from factory(except maybe what ever TKE100L-Spec is).I also got with it the Versa-Mil that was on the truck to use with lathe.Thanks in advance for any help.I will try to post a picture soon.