Pennsylvania has a second amendment clause written into it's state constitution that pre-dates the 2nd amendment to the US Constitution...
The Pennsylvania Constitution of 1776’s Declaration of Rights stated, “That the people have a right to bear arms for the defence of themselves and the state; and as standing armies in the time of peace are dangerous to liberty, they ought not to be kept up; And that the military should be kept under strict subordination to, and governed by, the civil power.”
The Pennsylvania Constitution was drafted in the summer of 1776 and it was adopted in September 1776. Among its principle authors was Benjamin Franklin. The constitution has been described as the “most democratic in America".
The Pennsylvania Constitution of 1790, which became permanent, states: “The right of the citizens to bear arms in defence of themselves and the State shall not be questioned.”