Good afternoon Gents and Ladies, I happened across this gem and was curious if anyone could give me some info on it. From what I have found this is a pre 1957 rifle but I cannot confirm. Also if there are any breakdowns of it so I can safely go through it without messing it up or losing small parts. When I received it, it would not hold pressure but after alittle rewetting of the seal it builds pressure now and shoots at about 600fps on a 6 pump.