It sounds like you’re referring to a P.D. Marloch Perth Salmon 13′ 3-piece fly rod with one top section. Here’s what I can gather about this rod:

Key Features:
– Brand: P.D. Marloch (likely a vintage or niche brand, possibly Scottish or UK-based, given the “Perth” reference—Perth is a city in Scotland known for salmon fishing).
– Model: Perth Salmon
– Length: 13 feet (a classic length for two-handed/spey rods used in salmon fishing).
– Configuration: 3-piece (with 1 top section, meaning it likely has a spare tip).

P.D.MARLLOCH PERTH Salmon 13' 3pc 1top Fly rod used

– Action/Use: Designed for salmon fly fishing, probably medium to slow action for traditional spey or overhead casting with large flies.

Potential Background:
– Era: If it’s a vintage rod (pre-1990s), it may be made of split cane (bamboo) or early fiberglass. Newer models could be graphite.
– Rarity: P.D. Marloch isn’t a widely recognized modern brand, so this might be a collectible or discontinued rod.
– Use Case: Ideal for big rivers (like the Tay or Tweed in Scotland) where long-distance spey casts are needed for Atlantic salmon.

If You’re Looking to Buy/Sell/Value:
1. Condition Matters: Check for cracks, loose ferrules, or wraps. Vintage cane rods in good shape can be valuable.
2. Comparables: Search for similar rods (Hardy, Bruce & Walker, Sharpes) to gauge pricing. A 13′ salmon rod in good condition might fetch £200–£600+ depending on rarity.
3. Provenance: Original tube, bag, or labels increase value.

Restoration/Use Tips:
– If refurbishing, consult a rod builder for rewrapping or varnish work.
– For fishing, pair with a 7–9wt spey line and large salmon flies (like Ally’s Shrimp or Willie Gunn).

Would you like help identifying its age or finding similar models?