Early Hewlett-Packard Serial Numbers …

Thanks to Devon Dawson (archivist at the Agilent History Center), we now have some official HP production serial number documentation. Serial numbers ranges for years up to 1949 will be tabulated here as they are made available.

Year 200A 200B 200C
1939 to 1941 prototype – 3428
1942 3429-4975
1943 4482-6860
1944 7425-11156
1945 11302-13366
1946 13417-14784
1947 14865-16443
1948 17770-19077
1949 19378-20398