(See the link below)
The model 100 is a .177 caliber air rifle. The model 101 is a .22 Caliber rifle. Basically the same air rifle just different calibers.
lets start with. Who made the rifle? there are over 100 different companies who have made air rifles.
The rate changes daily. At the time of this answer Its 1 US dollar = 1.0491 Canadian Dollar. So a $100 US dollar Daisy would cost $104.91 in Canadian dollars.
100-500 or so
75 dollars
100 or so
25-100 or so
What condition is it in. That determines the value.
50-100 USD
If you are asking "WHAT" not "Where" is the most powerful under lever .177 air rifle. Then I suggest the "Hatsan Torpedo 150 air rifle." I comes in at around 1250 FPS where as most of the other under levers fire at around 950 to 1000 FPS. However Under levers are not the most powerful air rifles. The PCP (PreCharged Pneumatic) Class of air rifles are the most powerful air rifles. An "Air Force Condor and the Evanix Rainstorm" fires a .177 cal pellet at 1300 FPS.
75 to 100 dollars (us)
Less than 100 to 500 or so