The Colt lightning 1877 model with serial # 47357 was produced in 1883. (40000-47999)
No such Colt model
Would need the serial number to answer.
You will have to call Colt to find out.
Proofhouse.com has Colt serial number tables.
COLT MFG. PRODUCED 38 AUTOS FROM 1900 TO 2003. You will need to be more specific with the Model and the serial number of your Colt to learn the exact year of production.
colt .380 mod. 1908 serial #112840 was mfg, between 1933 and 1934. hope this helps. don
No serial number provided.
After 1978. You will have to call Colt to narrow it down further.
Call Colt with the sn and they will tell you.
if you have a letter 'C' after the serial number then mfg. date would be about 1960
The records I have show a Colt government model with that serial number as being made in 1914 by Springfield Armory under contract with Colt Mfg. Co.