do you have a bathroom scale?
if you do, use it.
hold the frame and step on the scale...remember the weight (or write it down)
put the frame down and weigh yourself...record this weight.
subtract your weight from the weight of you & frame & that's how much the frame weighs
or bring it to a bike shop
__________________
You know you're getting old when you look at a beautiful 19-year-old girl and you find yourself thinking, "Gee, I wonder what her mother looks like?"