I'm sure when you said "Its a toy" you were saying it tongue in cheek so I'm sure you will agree it really is not a toy.
That said, if the gun has a ramrod or you have a wooden dowel that will fit into the barrel and is longer than the barrel it would be a good idea for you to find out if your gun is loaded.
You'd be surprised at the number of old muzzleloaders that are and black powder does not deteriorate with age.
If you haven't already done this, run the ramrod or a dowel down the barrel until it stops.
Wrap a piece of tape around the ramrod or dowel so it is flush with the muzzle of the barrel.
Remove the ramrod and lay it along side the barrel, lining up the tape with the muzzle.
If the end that had been stuck down the barrel is even with or below the touch hole in the side of the barrel, the gun is unloaded.
If the end doesn't reach clear down to the touch hole you can guess that the gun is still loaded.
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A picture or two showing the lock area and the entire gun would help greatly in identifying it.
Follow this link and watch the video to learn how to post pictures on this site.
http://www.muzzleloadingforum.com/fusionbb/showtopic.php?tid/255033/
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I'm moving this topic to the area where we discuss old original guns.
I'm sure that after our members see what you have they can tell you a great deal about it.