I think the above ST stamp may be the original. I have another from a later yr.
1991 was indeed the first year followed by:
1992 - Brown Trout
1993 - Rainbow Trout
1994 - Brook Trout
1995 - Steelhead (I think)
1996 - Angler fishing in a stream
1997 - Angler fishing in a stream
1998 - Angler fishing in a river
1999 - PFC rail car "Susquehanna" on trestle over stream
2000 - Brook Trout
2001 - Rainbow Trout
2002 - Brown Trout
2003 - Man & boy anglers walking along stream bank
2004 - Angler releasing fish in stream in Autumn
2005 - Brown Trout
2006 - Brook Trout (From a 1981 Ned Smith painting)
The 2006 Trout Stamp was the last "lick & stick" version trout permit. After 2006, the trout permit (AKA) Trout Stamp was a digital image of either a trout on a license purchased from an agent or a silhouette of a trout on a license purchased online.
The PFBC continued printing collector trout stamps from 2007 until 2010 when FINIALLY the lowly "Palomino" got its due on a collector stamp.
BTW - I believe all trout pictured on the stamps were stocked...
😉