It's not a Flobert...
but a Warnant type.
Inexpensive rifles and smoothbores (garden guns) were made on this action, primarily in Belgium. It is not very strong, and was chambered only for .22, .32 and 9mm rimfire cartridges.
The true Flobert has no separate breechblock: the hammer face is enlarged and has a fixed firing pin - it serves both to close the breech and fire the cartridge. It is limited to cartridges of the .22 short class.
The Warnant action has a separate breechblock, which is pivoted on screws to the left and right of the chamber, and which is held down (locked) by the hammer when fired.
Neither Flobert nor Warnant arms are generally of much value, though some very ornate specimens have been made. It is true that arms having both types of action are often called Floberts.
The illustrated Warnant is of the most common type.
PRD1 - mhb - Mike