Impossible to answer without knowing who made it.
80-250 USD
i have a mod tex 22cal lr with a 22 mag interchangeable barrel
25-125 USD or so
75-275 USD
Impossible to answer as stated. You might as well have asked "what is my car worth".
No sn data available. Inexpensive 22 imported by FIE
50-100 usd
Where can you locate a parts breakdown and availability for a Sears mod. 42-103-2840-22 caliber rifle?
The 1966 Mod 60 Smith & Wesson in good condition is worth $1,200.00
How much is a bersa 380 mod.85 worth
It may not have one. Serial numbers were not required by law on rifles and shotguns until 1968.
1964 mod 101 = 45