What does Landed Gentry do in AoE3?

Cavalry Archer: Wood cost set to 55, Coin cost set to 0; Ships 3 Cavalry Archer. The game says: "Enables Cavalry Archers to be trained in the Commerce Age and replaces their coin costs with slightly reduced wood costs."

Home City card

Landed Gentry

Landed Gentry (tech ID DEHCLandedGentry) is a Home City card in AoE3: Definitive Edition 100.19.18309, in the decks of 1 civilization, sent from the Colonial Age. Effect: Cavalry Archer: Wood cost set to 55, Coin cost set to 0; Ships 3 Cavalry Archer. It hands over about 480 resources' worth.

Quick answers (3)

Which civilizations have the Landed Gentry card?: Russians.
What does Landed Gentry do in AoE3?: Cavalry Archer: Wood cost set to 55, Coin cost set to 0; Ships 3 Cavalry Archer. The game says: "Enables Cavalry Archers to be trained in the Commerce Age and replaces their coin costs with slightly reduced wood costs."
What is the tech ID of Landed Gentry?: DEHCLandedGentry.

Enables Cavalry Archers to be trained in the Commerce Age and replaces their coin costs with slightly reduced wood costs.

What it does

Cavalry Archer: Wood cost set to 55, Coin cost set to 0
Ships 3 Cavalry Archer(unit)

1 further effect (interface, visuals or AI) not listed.

What it hands over

3 × Cavalry Archer160 each

Total ≈ 480 resources — units at their train cost, crates and animals at what they hold.

Cost: 1
Sent from: II
Times it can be sent: 1
Game ID: DEHCLandedGentry

In these decks

RussiansII×1

Source: techtreey.xml and the Home City files, AoE3: DE 100.19.18309 (build 25040513).