Stepdad's shotgun...?

[B. Dudley]

You should post pics if you can. If it is in fact a Parker Brothers gun, then it is an fairly early one. There is not much in your description that tells me for sure if it is or is not a Parker. Sometimes they end up being one of those Belgian "Parker" knockoffs.

[David Hamilton]

It could very well be a Parker as the description matches but we do need images to give you the kind of advice you want. David