Here are some used harbour items  from Triang Minic Ships.

There are 2 crane sets with plastic jibs, making 4 cranes in total

Shown in photo one green base one orange base but may be two of either.

Condition is playworn, used reasonable

Size is  2 by 1 inches or 49 by 23mms

Triang code M839

my ref ACCSo8p

 LIBRARY ITEM

So the photo is typical and not specific to the one you receive. The cranes may be from any of the three Triang Minic series as they are identical except underneath.