Rather than cluttering up the today I aquired thread I'll post up here. Gonna need some work to get this back to work. It's marked as a no.2 but what weight that relates to I couldn't say. Doing a bit of digging on them it's a compound leverage ratcheting arbour press. Slide a pin across and double the force. Here's how I found it. Apparently been sitting outside for the last 2 years... Why it was outside will become apparent later.