....about the adorable lineside crane: yesterday I wandered along the banks of the local stretch of the Caledonian Canal and it has two relatives of your crane. Both however bear large blocks of stone in cast-iron supports, to balance things when working. One lifts 3 tons, not sure about the other. Both painted gloss black with maker's names in white.
What balances yours? What would its lift limit be?
I already know mine has a problem - I'd intended to show it lifting a tanktainer but it seems most unlikely it could..... The gross weight would be c30,000kg whereas the crane capacity may only be 10,000kg.