When you ask for the value of this airgun, you need to give me more information than "How much is it worth?" Let me explain. If I asked you "How much is my 56 T-bird worth?" The first thing you might ask is, "What condition is it in?" It could be a real gem or just a bucket of rust. It's the same with any antique. The current condition determines the value.
You need to give a description of the airgun, give it some sort of rating like, it's in (Poor, Fair, Good, Very Good or Excellent) shape. Or tell me that is looks well used or has very little wear. Something that gives me an idea of where to start. Without more information it is not possible to give you an estimate of value.
Sheridan C silver streak in good condition would be worth between $125 -$160 USD
What is the age of a Sheridan c series 5mm 20cal rifle serial number 370862
What condition is it in, both mechanically and physically. That determines the value
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.
Around $100 in good condition.
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?
The C and CB series (NOT the C9 Series) in fair condition is worth around $55 to $85. There are many versions of the C series Sheridan Let me explain: Sheridan made air rifles started in 1945 and made a few variations of the C series. Benjamin bought out Sheridan and continued to make the C series ( C9, CB, CBW CW ) From 1949 to 1990 it was marked Sheridan. In 1972 serial numbers were redone and started with #000000. Crosman bought out Benjamin (1992) and continued to make the C series Rifle (It's very popular) The rifle was made in .177, .20, .22 caliber. From 1998-2000 Crosman marketed the C series .177 and .22 Caliber as a Benjamin and the .20 Caliber as a Sheridan. You may see a C9 Silver Streak or a C9 Blue streak. They are the current C series rifles At one point during the 1950's the rifle was marketed as a Benjamin Franklin as a marketing ploy. Benjamin Franklin had nothing to do with it. But his name got stuck on it anyway. Along the way the rifle has also been marketed as a Benjamin / Sheridan.
At one time Sheridan, Benjamin and Crosman were all separate companies. In the 1970's. Benjamin bought out Sheridan and took over the company. In the 1990's Crosman bought out Benjamin. Now Crosman owns all 3 companies. When Benjamin bought out Sheridan they decided to keep the C series design. So they decided to keep the Sheridan name on the .20 mm air rifle and put the Benjamin name on the .177 and .22 caliber 392 series air rifle that looks just like a Sheridan C Series. So All Sheridan C series are .20 caliber and the .177 and .22 are Benjamin's. Crosman decided that this worked well and kept the same arrangement for both models. If you go to the Crosman home page you will find (At the bottom of the page) a link to (Owners and Parts Manuals) there you will find the owners manual in the Benjamin / Sheridan section.
It was made in 1983
It was made in 1984. Today, Sheridan is owned by the Crosman air gun Company.
There are many versions of the C series Sheridan Let me explain: Sheridan made air rifles started in 1945 and made a few variations of the C series. Benjamin bought out Sheridan and continued to make the C series ( C9, CB, CBW CW ) From 1949 to 1990 it was marked Sheridan. In 1972 serial numbers were redone and started with #000000. Crosman bought out Benjamin (1992) and continued to make the C series Rifle (It's very popular) The rifle was made in .177, .20, .22 caliber. From 1998-2000 Crosman marketed the C series .177 and .22 Caliber as a Benjamin and the .20 Caliber as a Sheridan. You may see a C9 Silver Streak or a C9 Blue streak. They are the current C series rifles Unfortunately you did not state the condition of the rifle is it excellent, very good, good, fair, or poor and is it still working? I assume that your rifle was made between 1998 and 2000. If you re-post the question with the information I will try to give you and estimate. Without that information I can only give you a wild guess. Final note: at one point during the 1950's the rifle was marketed as a Benjamin Franklin as a marketing ploy. Benjamin Franklin had nothing to do with it. But his name got stuck on it anyway. Along the way the rifle has also been marketed as a Benjamin / Sheridan.
Depending on which version of the Silver Streak, the C Series or the C9 Series the value is about the same. In Very Good condition it is worth around $135 to $155 If it has no wear, scratches, dings, rust, pitting or other damage.