SKS receivers are milled. AK receivers can be stamped or milled.
No way to tell. Remingtons are dated by a 2 or 3 LETTER code stamped on the left side of the barrel, half inch from the receiver.
It should be stamped on the side of the receiver.
THey were made by crescent firearm company.
Can't tell without full description of all markings and features
Look at the barrel on the left side, about a half inch forward of the receiver- you should find some very small letters stamped there. You may need a magnifier to accurately read them. They are a code to show month and year made. The Remington Collector's Website has a table of date codes to decipher them. Note that is the date the BARREL was made. If original to rifle, is also date rifle was made.
The Luger had a Year stamped on top of the receiver just behind the barrel.
1920 or after......................
50-650 usd
A carbine is a rifle with a relatively short barrel. If you have a carbine receiver it's for a rifle. There are lots of 9mm carbines out there. Here is a link to some photos http://images.google.com/images?svnum=10&hl=en&lr=&q=9mm+carbine&btnG=Search Hope that helps.
The model number should be stamped into the barrel near the Winchester name. It will say "model" or "model of"
the sn of the rifle will tell you when it was made, nothing else.
All IJ 9MM carbines are rifles. The receiver itself is not for a firearm, it is the firearm, missing some important other parts though, legally it is the firearm itself. The word carbine would indicate that it is more towards the rifle side of things, but a carbine in itself is a shortened easy handling rifle.