Duplicating items via api - images not copied

Duplicating items via api - images not copied

Cannot seem to get the image copied to the new duplicate, any ideas guys ?...

var jsonArray = {
"item_type": "inventory",
"product_type" : "goods",
"name": name,
"description": desc,
"rate": sellfor,
"unit": unit,
"purchase_rate": buyfor,
"inventory_account_name": "Inventory Asset",
"purchase_account_name": "Cost of Goods Sold",
"tax_id": "####################",
"initial_stock" : size,
"initial_stock_rate" : initRate,
"image_id" : image,
"image_name" : imageName,
"custom_fields" : [{"index" : indexofCustomFieldBay,"value" : bay}]
}