Have a Harrington & Richardson 410. Model 088. Serial number a2435440. How old is it. Please help. Thank you

Harrington & Richardson date codes

Year
Serial Number
Prefix Year Serial Number
Prefix Year Serial Number
Prefix Year Serial Number
Prefix 1940 A 1953 N 1966 AC 1979 AT 1941 B 1954 P 1967 AD 1980 AU 1942 C 1955 R 1968 AE 1981 AX 1943 D 1956 S 1969 AF 1982 AY 1944 E 1957 T 1970 AG -- -- 1945 F 1958 U 1971 AH* -- -- 1946 G 1959 V 1972 AJ -- -- 1947 H 1960 W 1973 AL -- -- 1948 I 1961 X 1974 AM -- -- 1949 J 1962 Y 1975 AN -- -- 1950 K 1963 Z 1976 AP -- -- 1951 L 1964 AA 1977 AR ** -- -- 1952 M 1965 AB 1978 AS -- --

Available for Cabinet level positions, consultation on matters of foreign policy, weddings and bar-mitzvahs. Will work for gold or guns.