From Guns.com…..
The Baby Browning, along with its brothers the Colt 1908 Vest Pocket and FN M1905, is among the most collectible and appreciated pocket guns of all time. In 1927, FN revamped the M1905 lineup with famed Belgian firearms designer Dieudonne Saive going to work on the pistol. Using the M1905 as his blueprint, he made a number of modifications to lighten the gun and improve the design.