I put together fairly comprehensive displays from these agencies for the 2005 NAWEOA conference held here in BC - if it's not depicted here, I probably already have it - send me an email to be sure:

and current style Park Warden wallet badge:

(National Capital Commission) NCC-CCN half round and NCC-CCN tab and GREEN BELT tab

NCC BADGE

There are about 9 variations of the "subdued" standard USFWS shoulder patch that I need  - if you have one please contact me to see if it's a version I need.

 and any older metal badges

US National Parks Service

                                            1075                                        1069a

National Marine Fisheries Service

METAL BADGE