What does 18kf mean?

How can you find out the manufacture date of a j Stevens arms and tool co 32 crack-shot with pat app'd for on the barrel? Pre beretta eagle arms shot gun what is it worth? What is a OS Mossberg Model 195 12 Gauge worth? Instruction manual for a Marlin Model 60? What size of string for RYOBI cs26? What is the average price of a ruger mark II? What is the value of an 1892 Winchester 38-40 produced in the year 1892? What has killed more people guns or swords? Does the size of the tang on a browning shotgun change the value such as short or long tang on a superpose or is it just different for different models? What is the value of a Taurus Mod 96 - 22 caliber revolver? How old is this gunIt is a single six ruger serial 62-86467? What is the date of manufacture of a colt AR15 SP1 with the serial number of SP350358? How many shots does a 22Lr Winchester model74 have? What is the age and value of a 22 caliber Savage Model 6A semi-automatic rifle? Does a pellet have to be in the chamber for a Crosman 140 to fire? What is the age and value of a J Stevens Arms Crackshot 26? Is the western field 410 m150d clip or single? Is it bad to release the co2 in your bb gun? Model 1915 776 32 long single-shot rifle you would like to know when they were made and where you could purchase ammo for it? Why bullets are pointed while rear part of the rifle is kept broad?