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100-800 USD
A Colt 380 hammerless with that serial number was made in 1915.
The Colt 1908 hammerless .380 with that serial number was made in 1937.
the model 1908 hammerless 380 with serial # 60093 was made about 1923
made about 1929
about 1916............................
@1911
Made in 1916.
The Colt 1908 hammerless 380 with serial number 39901 was made near the end of year 1920 as the year 1921 started with serial number 40000.
Proofhouse.com has Colt sn data.
made 1927
about 1922