It looks like you’re referring to a Northland Trad Prince fly fishing rod, specifically model No. 42, with lengths of 5’6″, 8’6″, and possibly other variants (like 8′ or 9′). The number 21 might refer to the line weight (e.g., 5, 6, 8) or another identifier.

Fly Fishing Rod No42 Northland Trad Prince 5 6 8Ft6In 21

Key Details:
– Brand: Northland (known for traditional fly fishing gear)
– Model: Trad Prince (likely a classic, moderate-action rod)
– Lengths:
– 5 feet 6 inches (short, ideal for small streams)
– 8 feet 6 inches (versatile for medium rivers/lakes)
– Line Weight: Possibly 5, 6, or 8 (check rod markings for confirmation).
– “No. 42”: Likely a vintage model designation or serial number.

What to Check:
1. Line Weight: Look for markings like “DT5” (Double Taper 5) or “WF6″ (Weight Forward 6) to match the right fly line.
2. Action: Older rods like this often have a slower, full-flex action suited for delicate presentations.
3. Condition: If buying used, inspect for cracks, loose ferrules, or worn guides.

Best Use Cases:
– 5’6″: Tight brushy streams, small trout.
– 8’6”: Larger rivers, nymphing, or dry flies with more reach.

If you need help identifying or restoring it, share photos or more markings! Vintage rods can be great collectibles or functional tools with proper care.