Different valuation multiples for juniors and seniOperating cash flow multiple for various silver producers are given at the following link ( they update it every so often)
p/e's of around 20
and cf multiples of around 10.
https://www.kitco.com/ind/matlack/jun012010.html
Look at the silver producers
cf for 1st quarter was 3.5 million. 3.5*4=14*10=140 million /250 million = .5-.6 cents. it should be noted this is based on average price in 1st quarter and based on lower production than average for the year should be.
P/e's of juniors are shown in the following:
https://www.kitco.com/ind/matlack/jun012010_juniors.html