Thanks for the replies and the welcome. I can't supply any pictures because I don't have the gun... yet. But the serial no. is E454321 if that can help narrow things down. The bluing looks good and the cylinder is tight in lock-up. It doesn't look very worn at all.

So, am I understanding correctly that this particular revolver won't fire standard .38 Special rounds but takes a "special" round made just for this type of gun?