1. picture is of an original Peabody Sporting Rifle butt plate.
Yes, the side swivel is original. Have seen old catalog pictures showing a side swivel on the butt stock, just like this one. For those in doubt, remember Windychester '66 also had a side swivel base on their butt stock.
2 - 5. not original, cast in Oklahoma in the 1990's.
Yes, 2-5 are from two custom Peabody Sporting Rifle projects that began in the late 1990's. The person having done the casting sold out his business 4+ years ago, nothing available from him anymore.
The stock maker who I obtained my semi-finished stock blanks for the two Sporting Rifles no longer has any in stock. He told me he'd made 6 sets of blanks and it took 10 years to sell them, the last being sold a couple of months ago - perhaps I helped sell that last one for him to someone in the Forum here. At present he does not plan on making anymore, due to the time it took him to sell that batch of 6 stock sets.
Mike, do you have the stock wood yet? If so, did it come from NM?
Looking forward to seeing the results of your casting project....and the rest of the Sporting rifle doings. Keep us posted, k'.
Hope this helps lend towards ideas n' concepts out there...