At the back of the base on the right is a small pile of construction materials - sand, barrels and a ramp of some description. They're all the same grey as the base - it might have worked better with a little paint or using the yellow found elsewhere on the toy. To the left is a tower - grey base, yellow cage top - which has two 5mm peg holes on the top on which you can mount the crane arm that comes with the toy. The cage top is removable, revealing that the grey base is hollow, but unfortunately the cavity in the base plus the capacity of the cage isn't great enough to accommodate Ironworks in it standing up though he just about fits sitting down. I use the space within for storing the missile for Battlestation mode. The colours used on this toy and it's general theme nicely complement the Micromaster Transport Erector - you should be able to mount Erector's crane arm on the tower too.
TF: Remove the crane arm, cage and ramps. Fold the underside of the left hand half of the base down 90 degrees and stand on the back of the base. Fold the front right quarter of the base out clockwise 180 degrees locking it onto the front left of the base to form a tower. From within the tower fold out the red sail - this is 3 identical pieces folded behind each other- spread them out at 120 degrees to each other to form a satellite dish. Or it might be a windmill, who can say for sure ? See bellow for more... Turn the cage upside down and peg into the side of the tower to act as a viewing platform. Fold the crane jib up, slot the missile on to the top of the crane arm and peg onto the base as a missile launcher.
Ironwork's Tech Spec lists his function is a communication bay which would lend credence to the thing on the tower being a Satellite dish. But you can see the Autobots as being early adopters of green energy and building a Windmill to create Energon - is Energon created from renewable sources green in colour ? Discuss. The tower design is nice, with lots of little compartments for putting Micromaster figures in including the cage platform mounted up the tower. 5mm peg holes on the under side allow you to attach weapons here though you'll need to source them from other toys as the crane arm missile launcher clearly attaches to the base where there's a compartment behind it for it's controller to stand. The missile launcher can equally be used by one of the larger Transformers with a 5mm peg hole fist as a hand weapon. The tower does include an exposed Micromaster Ramp Connector the right way up but since it's a good 10cm up in the air it's not much use for connecting this mode meaningfully to most other toys unless they are themselves raised up. The only possible exception to this is Sky Garry where the ramp is very steep but looks just about useable.
Decent toy - some thought has gone into it making it the right colours for a construction toy, aligning it with another toy out the same year.
Ironworks was sold in Japan as Transformers Zone toy C-344. The base was identically re-released in the Brave Police line with some PVC figures but missing the Micromaster.