Early 1911
First year 1909 (RW is not part of the serial - it stands for Remington works)
Your remington was made in 1928.
If it's not marked it's a model 12B (B is short only/Gallery model) made in 1912 the value is dependent on original condition. From a 200 beater to a 1,200 like new or more in the original box.
Manufactured: 1913 The manufacture month and year of a Remington rifle can be determined from a letter and number code stamped near the back of the barrel on the right side. If your Model 12 is not marked 12A, 12B, 12C, 12CS, 12D, 12E, or 12F, it is a basic Model 12.
A 12B is a Gallery Special the manual is the same for all 12's. The only place you can find a manual or reproduction is to search places like eBay I put a manual here: http://www.remingtonsociety.com/gallery/main.php?g2_itemId=3770
A 12-B is a Gallery (short only) This was made early in 1913 Value based on condition, condition, and condition, also condition, without out that's a 100 parts or beater to 2,000.
12b-4
AnswerThe Model 12 actually came in 12A, 12B, 12C models. The Model 12A had a round barrel, while B & C had octagonal barrels. The Model 12B was a short barrel rifle. Value depends on the actual model and condition. I have seen this at shows and online for anywhere from $250 to $500. Most of them, like my father's model 12C, are kept for their sentimental value, rather than as a valuable antique firearm. But as I remember, the Model 12 was an accurate, dependable rifle. I used my father's 12C to dispatch a lot of small game back in the 1960's.This firearm was introduced in 1909 and the last one, a model 12C was produced in 1929. Remington can actually tell you the approximate date of manufacture of yours based on the serial number.Actually, Remington made the Model 12 until 1936 after which it was replaced by the Model 121.Actually (from a different person ;) If you list a serial number I can tell you when it was made if it's after 572,000 or so it's 1921 and later and there will also be a date barrel code stamped on the left side of the barrel, which you can lookup (or list here) and it will give month as well as year. If a 12 is in excellent to mint condition depending on the grade in can bring 12-1,500 new in the box.
The LCM is 36bc^3.
6a -12b + 30 = 6 (a - 2b + 5)
24 = 48 - 12b subtract 48 from each side -24 = -12b divide both sides by -12 2 = b