Firearms International was the STAR importer in the USA up until 1972. and most all the DK's were imported by them. Some by independent dealers though. STAR decided to slap the STARLIGHT designation on the pistols destined for the US market. Those marketed in the rest of the world didn't have that rolled onto the slides.
GCA68 stoped FA International (and anyone else) from importing the DK as it didn't meet the needed points for same. I think it was a system of 75 needed for importation.
In about '72 Firearms Inter. decided to import several thousand parts for the DK into the US,,no frames,,. F/A Int then fit some of those STAR parts to a frame made here in the US (FAI based company or an independednt contractor,,depends on who you believe). The frames are investment cast and have a fixed lanyard loop. The magazine bases are different from the STAR product and the grips were wood with F/I medallions inset.
FI took 50 of these guns to Colt and hoped to interest them in making the pistol a 'Colt' product. Colt said they were interested and requested additional pistols,,had roll dies made to mark the pistols and Colt gave chromed grip medallions to FI to put into the grips in place of the FI medallions.
Ser#'s started at CPA 001001.
There's 2 different slide legends even within the small lot of Colt sample pistols. Not every ser# was apparently used . I don't recall how far the #'s go on the guns Colt actually bought and sold.
Colt backed out of the deal because though they initial liked the small 380, they felt that a soon to come revision in the GCA68 would make the pistol unmarketable and they would be stuck with them and a big loss in investment.
Colt returned the remaining sample pistols to FI when the deal was not closed.
FI continued to produce to at least CPA 100000.
Some of the early FI production done after the break with Colt show pistols with the Colt slide legend ground off and a Firearms International logo replacing it. Those are the sample pistols returned by Colt.
IJ picked up the gun in the late 70's and sold it as the X300 Pony.