Sw serial number dating

However, by examining those components as a group one can determine that the instrument was produced no earlier than the latest date indicated by its component parts.

In general, tubes appear to have had the shortest stock life and speakers the longest.

Even the above is fraught with some risk, as replacement parts used for repair or modification will occasionally skew the overall picture.

Additionally, some organs have been pieced together in order to get one working unit out of many; this will produce inconsistent and unlikely date code ranges.

Does anyone have a clue as to where I would find info (Other than Roy Jinks) on this revolver?

Late 1974 – Early 1975 D750,001 – D870,000………Late 1975 – Early 1976 D870,001 – D999,999………Late 1976 – Early 1977 2D00001 - 2D80,000……….1977 2D80,001 – 2D99,999………1978 4D00001 – 6D10,000……….1979 6D10,0001 – 7D10,000……1980 7D10,001 – 9D44,500…..1981 9D44,501 – 17D8,900………1982 17D8,901 – 21D0883……….1983 K Series K Frames (Adjustable Sight Models) K101 – K614……………......1946 K615 – K18,731…………....1947 K18,732 – K73,121……..…1948 K73,122 – K84,149……..…1949 K84,150 – K104,047…...1950 K104,048 – K136,690...1951 K136,691 – K175,637...1952 K175,638 – K210,095...1953 K210,096 – K231,255...1954 K231,256 – K266,154...1955 K266,155 – K288,988...1956 K288,989 – K317,822...1957 K317,823 – K350,547...1958 K350,548 – K386,804...1959 K386,805 – K429,894...1960 K429,895 – K468,098...1961 K468,099 – K515,478...1962 K515,479 – K553,999....1963 K555,000 – K605.877....1964 K605,878 – K658.986....1965 K658,987 – K715,996....1966 K715,997 – K779.162....1967 K779,163 – K848,781....1968 K848,782 – K946,391....1969 K946,382 – K999,999....1970 1K1 – 1K39,500.........1970 2K1 – 2K22.037.........1970 1K39,501 – 1K999,999...1971 2K22,038 – 2K55,996....1971 3K1 – 3K73,962.........1971 2K55,997 – 2K99,999....1972 3K31,280 – 5K6,616.....1972 4K1 – 4K1,627..........1972 4K1,628 – 4K54,104.....1973 5K6,617 – 5K73,962.....1973 4K54,105 – 4K99,999....1974 5K73,963 – 6K58,917....1974 7K1 – 7K26,043.........1974 7K26,044 – 7K70,577....1975 6K98,918 – 8K20,763....1975 8K20,764 – 9K1.........1975 8K20,000 – 9K100,000...1975 9K1,001 – 9K99,999.....1976 10K001 – 24K9,999......1977 25K001 – 56K9,999......1978 – 79 57K001 – 91K6,800......1980 91K6,801 – 124K000.....1981 125K000 – 269K9,999....1982 270K000 – 311K273......1983 1980 Three-Letter Prefix Series Begins at AAA000 Disclamer: I'm no S&W expert but here's what I found: According to my Smith & Wesson Standard Catalog the 10-7 was made in 1977 but the "BAS" prefix dates it to 1988.

Don't get too hung up on searching for temporal coordinates to the exclusion of the unit's real purpose as a musical instrument.

Late 1952 – Early 1952 S86,000 – S94,999…….…Late 1952 – Early 1953 S95,000 – S102,999…….

22000––––––––-1942-1945 None Post-War S Series N frames: S62,489 – S67,999……..1946 - Early 1947 S68,000 – S71,999………. In one known example a gun with serial S136431 was not shipped until June of 1958.

Late 1955 – Early 1956 S150,000 – S175,999……Late 1956 – Early 1957 S176,000 – S181,999……Late 1957 – Early 1958 S182,000 – S194,499……Late 1958 – Early 1959 S194,500 – S206.999……Late 1959 – Early 1960 S207,000 – S219,999……Late 1960 – Early 1961 S220,000 – S227,999……Late 1961 – Early 1962 S228,000 – S231,999……Late 1962 – Early 1963 S232,000 – S235.999……Late 1963 – Early 1964 S236,000 – S257,999……Late 1964 – Early 1965 S258,000 – S261,999……Late 1965 – Early 1966 S262,000 – S289,999……Late 1966 – Early 1967 S290,000 – S304,999……Late 1967 – Early 1968 S305,000 – S329,999……Late 1968 – Early 1969 S330,000 – S333,454……Late 1969 – Early 1970 *Note that a number of N frames with serials in the S138000-S140000 range (and the range may be wider either way) are seen that were shipped much later than the serial would suggest should be the case.

What follows is a breakdown of the more common parts and a description of their codes.

Some specific examples are cited that can be used to provide assistance in identifying the production date of similar components. Tung-Sol 6550 tubes have the following format: XXXYYWW, where XXX is the EIA manufacturer code, YY is the last two digits of the year and WW is the number of the week in that year.

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