One minor point I would like to make regarding the 1910 as being
"quite similar to the Colt-manufactured 1903 pocket pistol" in the OP's
text above. The 1910 and the Colt 1903 are really very different
designs with nothing much in common. The 1903 Colt was a scaled
down version of the 1903 Browning external hammer 38 auto and the
very similar concealed hammer 1907 Swedish model. The 1910 model
was in some ways a scaled up version of the Colt 1908 25 acp and
shares several design features with it. The 1908 Colt was a Browning
design of course and made in Belgium by FN and in the US by Colt from 1908 until about 1941.