I have the same problem with my 740. Although I am fairly certain that its because the tip of the magazine latch broke off.
My 71 has a serial # 20xxx and is made in 1937.
45 ???? revolver or pistol ????? what is the model ????
20x
18Roman Numeral Decimali 1ii 2iii 3iv 4v 5vi 6vii 7viii 8ix 9x 10xx 20xxx 30xviii = 10 + 5 + 3 = 18
MM = 2000MMM = 3000C = 100CC = 200CCC = 300CD = 400D = 500DC = 600DCC = 700DCCC = 800CM = 900X = 10XX = 20XXX = 30XL = 40L = 50LX = 60LXX = 70LXXX= 80XC = 90I = 1II = 2III = 3IV = 4V = 5VI = 6VII = 7VIII = 8IX = 9Using combinations of these numerals you can make any number from 1 up to 3999 (MMMCMXCIX). For example... DCLXVI (666) MCMLXXII (1972) MDLV (1555) and MDCCCLXXXVIII (1888).
It depends on the city in Kelantan you are looking for. All of the postal (or zip codes) in Kelantan, which is a state in Malaysia, start with a "1" and are follwed by four more digits. For example, one of the zip codes in Kota Bharu is 16100. If you want to determine the complete zip code, you need more than just the state name, you will also need a city in Kelantan, Malaysia.