What does Blockhouse Cannon do in AoE3?

Blockhouse: can train Falconet, can train Mortar; Ships 1 Falconet. The game says: "Ships 1 Falconet. Blockhouses can train Falconets and Mortars."

Home City card

Blockhouse Cannon

Blockhouse Cannon (tech ID HCBlockhouseCannon) is a Home City card in AoE3: Definitive Edition 100.19.18309, in the decks of 1 civilization, sent from the Fortress Age. Effect: Blockhouse: can train Falconet, can train Mortar; Ships 1 Falconet. It hands over about 500 resources' worth.

Quick answers (3)

Which civilizations have the Blockhouse Cannon card?: Russians.
What does Blockhouse Cannon do in AoE3?: Blockhouse: can train Falconet, can train Mortar; Ships 1 Falconet. The game says: "Ships 1 Falconet. Blockhouses can train Falconets and Mortars."
What is the tech ID of Blockhouse Cannon?: HCBlockhouseCannon.

Ships 1 Falconet. Blockhouses can train Falconets and Mortars.

What it does

Blockhouse: can train Falconet, can train Mortar
Ships 1 Falconet(unit)

What it hands over

1 × Falconet500 each

Total ≈ 500 resources — units at their train cost, crates and animals at what they hold.

Cost: 1
Sent from: III
Times it can be sent: 1
Game ID: HCBlockhouseCannon

In these decks

RussiansIII×1

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