It all depends on age, use, and condition of the rifle. Is it in Poor, Fair, Good, Very good or Excellent condition. Sheridan made 4 different model C series. The C Silver Streak, C9 Silver Streak, CB9 Blue Streak, and C9BP. Which one are you asking about?
Around $100 in good condition.
What condition is it in, both mechanically and physically. That determines the value
You have given me all the information except the model. Sheridan has several different models at different prices
The value of a benjamin sheridan 392pa 5.5mm 22cal air rifle is $185
What condition is it in. That determines the value.
I believe you are asking about a Sheridan .20 cal (5mm) air rifle. They started to make this rifle in 1949 and stopped in 1990 ( sheridan sliverstreak model ) During the 1990's the name changed to C9 sliverstreak and C9 bluestreak. The value is determined by the current condition of the rifle. You did not give any such information , therefor I can not answer you.
Sheridan C silver streak in good condition would be worth between $125 -$160 USD
Sheridan made several C series rifles. I assume that you are asking about the C Silver Streak. Not the C9 Sliver Streak. In order to give you an estimate I need to know the condition of the rifle. Does it still work? Does it hold air. What condition is it in? All these determine the current value.
The sheridan H series in good condition is roughly worth $100
The Winchester model 425 was made for Winchester by "Meyer & Grammelspacher" of Germany. The value is determined by the condition of the rifle. without any information about the condition of the pellet rifle, no estimate of value can be determined.
what condition is the rifle in.
20-100 or so depending on model