Could be German, Italian or US
Exactly how is the pistol marked? 9mm browning serial number 72C44338
FIE stands for Firearms Import & Export. Cheap guns imported from West Germany, Italy, and manufactured later in Miami, Fl. E-15 is a ruger knock-off.
It should be marked as to where it was made.
The caliber should be marked on the slide.
Most likely a ROHM
Most likely ROHM or RG.
Herbert Schmidt Company.
Sorry- but that is not enough information to answer. Serial numbers are NOT unique to one maker. Post again with ALL information marked on the gun, and we will try to help.
The lower the serial number the younger the pistol is
The PY in the middle of your serial number dates your pistol to 1982.
In order to tell how old your Colt 25 semi auto pistol is, you will need to offer the serial number. This number gives you an idea of when the pistol was manufactured.
You will have to call Colt with the serial number to find out.