That looks like one of the batch brought into Canada back in the sixties. I don't remember where they got them but I remember they were just thrown into big square, wooden boxes, which contained appx 100 rifles each. Sometimes there were a few more and sometimes a few less. They came out of the Middle East or India.
They can be a good source for parts and from those I pulled apart, after cleaning were functional for the most part. Alan Lever paid $1 each for them and it cost him twice that much to ship them to his facility.
Lever sold them either as singles for $7.50 each or took the rifles that were no longer functional and weld the receivers/barrels to a couple of rings. Then they pulled one of the breech blocks and internally threaded the muzzle. Then they ran an electrical cord up the bore and screwed in a light fixture. Of course, they were dumped into a degreasing solution first then rinsed before this procedure. Some of the units were spray painted black or brown.
These sold for $17.50 each. I remember there were fifty such units made up and advertised as the accessory every serious collector just had to have. That along with some stools/tables that were made from brand new, replacement Springfield 03 scant stocks which had the fore ends cut back and a used for legs. I seem to remember a $5 tag on those.
If that rifle didn't come out of Lever Arms, it likely came from International out of Montreal.