I have acquired a type 38 rifle, Jinsen arsenal, 2 digit serial # without prefix. Very good condition, shiny bore, well made rifle. Instead of Mum it has the symbol for Instruction,( my wife can read Chinese). I know it is not a cheaply made training rifle. Just what were the instructional rifles, and does anyone have an idea of value and when it was made. I will be setting up at a Gun Show this weekend but not going to price this till I have more info. Farmer