Hard copies of all the charters (current and prior) can be obtained through the Town Clerk at Town Hall.  Online versions of the prior four can be downloaded here:

Proposed and approved

 plymouth_charter_05

 plymouth_charter_99

 plymouth_charter_91

Proposed but not approved

 plymouth_charter_proposal_02

Note: these documents are saved in Micrsoft Word formats.  Don't have Microsoft Word?  Download OpenOffice (a free, open source office suite) by clicking here .