Low number of 4000.

Obviously a 1922 or 1923 gun,most likely 1923.The oldest one that I've seen.If you've followed this thread,you know that being more precise isn't possible.
A pity that such an old one had scope blocks added(or a groove? I can't see enough of the top)
Since it is an early one with a square tang,does it have a stock crack in that area?

 

It has groves..

See if these are clear enough for you to see.

One person that was asking questions said he didn't know they even made them with groves back then.

Had not even noticed until you asked but yes... it does have a crack.

Glen

 

Have never seen this calibre designation on a Trombone before now. Could it be .22 Flobert as in parlour guns of long ago?

 

I think you are correct about this. FL is the designation for Flobert.

 

???

No idea I'm afraid. I'm just not a gun person. Didn't even know that my parents had kept this gun after I moved away when I was 18. Glad they did. It was my favorite rifle as a kid.

Shame records from those days are gone.

 

These guns were non grooved until much later.Grooves are non factory,probably added in the early 60s,contemporary with that scope.Tip off rimfire scope mounts didn't exist in the 1920s.

 

Serial number would be late 1923 or 1924. The .22c designates chamber is.22 shorts only. See posts 59 and 83 in the Serial number thread.

 

My Trombone is serial number 4640 and has FL22.C stamped on barrel and shoots 22 Long Rifle all day long!

 

My understanding is that Flobert provided at least the early .22C "short only" barrels. Also, just for those who want a tidbit of info, the C designation on the barrel stands for "Court" which is the French word for "short".

 

Your rifle s/n 4060 is more than likely 1923 (s/n 23xx was manufactured in April 1923 according to FN).

From what I have worked out s/n 48xx is earliest 1924 (and certainly not 1923)and s/n 44xx is pre 1924.

The earliest FL 22 C marked Trombone I have is 13xx and the latest 49xx.

Possibly 13xx was made in 1922.