How To Fix this tools handle

[Methuselah]

I have the majority of the tools I think I need to start some leather work. This 4 and 1/2 in round head knife has a pin that is visible on one side but not the other. When I shake it there's play front to back, and a little bit side to side. The pin is tight the bolster is tight. I get the feeling the blade should be tight within the handle rather than as flimsy As It Seems. It's in very good condition I even have the sheath that came in. marked C S Osborne and Company.

So my question is is it supposed to be loose? or how do I pull out this pin and find out if the tang is broken inside?
or do I use it as it is?
If the Tang is broken inside, maybe that's why the guy gave it to me free with the stack of leather.
Thank you everybody

 

[Tinbasher]

If the pin goes all the way though then all you need to do is get a punch that is smaller than the pin and tap it out.
it is unlikely that the tang is broken if it is still in the handle.

Richard