The action may be a custom one off but I doubt it, looks German to me or Swiss. I do not think the F on the actions left side is the maker, probably the owner.
If it were mine I would put it out there on several forums including the British Rifle forum, could be a British gun. Is this in 22 rf or is it a CF action?
Mike

Eric Johnson was a barrel maker. He was known primarily for his excellent Small Bore Rifles. he also built a Hammerless Breech block for Ballards. He worked in the 30s I believe for Hoffman Arms an upscale custom gun buider in the midwest and then when that failed he worked for Dubois (Spelling?) Arms Co. He later moved to the Connecticut area and went into business for himself. His .22 cal barrels were very popular. He graded them I believe with either Star stamp or Heart stamp. The more the better. Have seen Eric Johnson barrels with 5 stars which was his best. Still not sure in my mind if it was stars or hearts. His work was top end. I have not seen a poorly built Eric Johnson rifle. It's as though everyone who got one realised he had a fine rifle in his hands and so did not mess with them. I have a Hammerli Team rifle in 30-06 from Dubois that was barreld when he was there so I believe it is one of his barrels. It shoots excellently  and is a tack driver. Unfortunately it weighs just over 18 lbs and is not so much fun to shoot offhand as it once was. Hope this helps.
Regards, FITZ.

Phillip what cartridge is the rifle chambered for and I like the looks of the action nice find.

J.Louis

My guess is, it's either a Weihrauch or a Haenel.  The pin layout is almost identical to my Weihrauch.  

Thinking early Weihrauch.  Pretty foggy but think they started right after  WW2. 

Wasnt there a Weihrauch action for sale on the forum earlier this year?  

Below is my Weihrauch HW52.   


                 Joe.  

Philip I apologize my friends 2R Lovell barrel is made by CC Johnson I tend to get the both mixed up at times.

J.Louis

What about that breech block? It looks like it's rivited together, I've never seen anything like that.

Frank

Here is what I have found out.

It is a 22 LR rifle

Eric’s records indicate that barrel number 517 was installed on a “German Falling Block,” serial number 100, on August 7, 1945 and shipped on the 8th to Jack Folk, 4049 Castor Avenue, Philadelphia, Pa.

Not much available on the action so far.