If you don't have an owner's manual, find a gunsmith and ask for help
25-56 USD
$25-$75
Could be German, Italian or US
25-160 USD depending on specifics
50-126
FIE stands for Firearms Import & Export. Cheap guns imported from West Germany, Italy, and manufactured later in Miami, Fl. E-15 is a ruger knock-off.
FIE was the company that imported these into the US. They were made in Brescia Italy, POSSIBLY by the Tanfoglio Company. FIE is no longer in business- the E-15 single action revolvers seemed to be from the 1960s-1970s. They do not have a high value. Some repair parts are available from gunpartscorp.com.
To determine the age of a Mod E 15 Cal 22 LR FIE firearm with the serial number E844272, you would need to refer to FIE's manufacturing records or relevant databases that provide information on production dates based on serial numbers. FIE (Firearms Import and Export) was active primarily in the 1970s and 1980s, so it's likely that this firearm was manufactured during that time period. However, without specific records, I can't provide an exact year of manufacture.
Try internet auctions, pawn shops, gun shops, gun shows, want ads.
No way to tell from just the sn. Provide a detailed description of all markings.
E-gunparts
Try e-gunparts.com