sample dupe loop

-----------------------------------------
--           Debug Logger              --
-----------------------------------------

local function EmitMessage(text)
    if(text == "")
    then
        text = "[Empty String]"
    end

    print(text)
end

local function EmitTable(t, indent, tableHistory)
    indent          = indent or "."
    tableHistory    = tableHistory or {}

    for k, v in pairs(t)
    do
        local vType = type(v)

        EmitMessage(indent.."("..vType.."): "..tostring(k).." = "..tostring(v))

        if(vType == "table")
        then
            if(tableHistory[v])
            then
                EmitMessage(indent.."Avoiding cycle on table...")
            else
                tableHistory[v] = true
                EmitTable(v, indent.."  ", tableHistory)
            end
        end
    end
end

function Debug(...)
    for i = 1, select("#", ...) do
        local value = select(i, ...)
        if(type(value) == "table")
        then
            EmitTable(value)
        else
            EmitMessage(tostring (value))
        end
    end
end

itemTable = {
  [140433] =
  {
      ["1:0:4:0:0"] =
      {
          ["itemDesc"] = "Crafting Motif 64: Pyandonean Chests",
          ["itemAdderText"] = "rr01 purple  epic  motif ",
          ["sales"] =
          {
              [1] =
              {
                  ["id"] = "1367217204",
                  ["seller"] = "@KingRichard",
                  ["timestamp"] = 1596911880,
                  ["guild"] = "Imperial Trading Company",
                  ["price"] = 10500,
                  ["buyer"] = "@Nakladac",
                  ["itemLink"] = "|H0:item:140433:5:1:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0|h|h",
                  ["quant"] = 1,
                  ["wasKiosk"] = true,
              },
              [2] =
              {
                  ["id"] = "1374948388",
                  ["seller"] = "@Bugi7",
                  ["timestamp"] = 1597613434,
                  ["guild"] = "Harrods",
                  ["price"] = 11500,
                  ["buyer"] = "@BartimeusUrukskiy",
                  ["itemLink"] = "|H0:item:140433:5:1:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0|h|h",
                  ["quant"] = 1,
                  ["wasKiosk"] = true,
              },
              [3] =
              {
                  ["id"] = "1381183198",
                  ["seller"] = "@ixie",
                  ["timestamp"] = 1598183473,
                  ["guild"] = "Harrods",
                  ["price"] = 14500,
                  ["buyer"] = "@Aphhxu",
                  ["itemLink"] = "|H0:item:140433:5:1:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0|h|h",
                  ["quant"] = 1,
                  ["wasKiosk"] = false,
              },
              [4] =
              {
                  ["id"] = 1381183198,
                  ["seller"] = "@ixie",
                  ["timestamp"] = 1598183473,
                  ["guild"] = "Harrods",
                  ["price"] = 14500,
                  ["buyer"] = "@Aphhxu",
                  ["itemLink"] = "|H0:item:140433:5:1:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0|h|h",
                  ["quant"] = 1,
                  ["wasKiosk"] = false,
              },
              [5] =
              {
                  ["id"] = "1362861928",
                  ["seller"] = "@Tatulla",
                  ["timestamp"] = 1596487990,
                  ["guild"] = "Harrods",
                  ["price"] = 19000,
                  ["buyer"] = "@Sonnenschein814",
                  ["itemLink"] = "|H0:item:140433:5:1:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0|h|h",
                  ["quant"] = 1,
                  ["wasKiosk"] = true,
              },
              [6] =
              {
                  ["id"] = "1363043652",
                  ["seller"] = "@Fun_Ball",
                  ["timestamp"] = 1596511609,
                  ["guild"] = "Harrods",
                  ["price"] = 12000,
                  ["buyer"] = "@Saiyune",
                  ["itemLink"] = "|H0:item:140433:5:1:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0|h|h",
                  ["quant"] = 1,
                  ["wasKiosk"] = true,
              },
              [7] =
              {
                  ["id"] = "1363460758",
                  ["seller"] = "@Engelwelten",
                  ["timestamp"] = 1596550251,
                  ["guild"] = "Harrods",
                  ["price"] = 14000,
                  ["buyer"] = "@Sorigal",
                  ["itemLink"] = "|H0:item:140433:5:1:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0|h|h",
                  ["quant"] = 1,
                  ["wasKiosk"] = true,
              },
              [8] =
              {
                  ["id"] = "1367208658",
                  ["seller"] = "@Antflow",
                  ["timestamp"] = 1596911263,
                  ["guild"] = "Harrods",
                  ["price"] = 14662,
                  ["buyer"] = "@Mizumono1998",
                  ["itemLink"] = "|H0:item:140433:5:1:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0|h|h",
                  ["quant"] = 1,
                  ["wasKiosk"] = true,
              },
              [9] =
              {
                  ["id"] = "1368176974",
                  ["seller"] = "@euphorage",
                  ["timestamp"] = 1596994550,
                  ["guild"] = "Harrods",
                  ["price"] = 10000,
                  ["buyer"] = "@MarkusP72",
                  ["itemLink"] = "|H0:item:140433:5:1:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0|h|h",
                  ["quant"] = 1,
                  ["wasKiosk"] = true,
              },
              [10] =
              {
                  ["id"] = "1363966454",
                  ["seller"] = "@ixie",
                  ["timestamp"] = 1596590546,
                  ["guild"] = "Harrods",
                  ["price"] = 16500,
                  ["buyer"] = "@Eledhon",
                  ["itemLink"] = "|H0:item:140433:5:1:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0|h|h",
                  ["quant"] = 1,
                  ["wasKiosk"] = true,
              },
              [11] =
              {
                  ["id"] = "1364008118",
                  ["seller"] = "@Avizura",
                  ["timestamp"] = 1596599688,
                  ["guild"] = "Harrods",
                  ["price"] = 10999,
                  ["buyer"] = "@Torsten1984",
                  ["itemLink"] = "|H0:item:140433:5:1:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0|h|h",
                  ["quant"] = 1,
                  ["wasKiosk"] = true,
              },
              [12] =
              {
                  ["id"] = "1370599912",
                  ["seller"] = "@Melbonis",
                  ["timestamp"] = 1597235595,
                  ["guild"] = "Harrods",
                  ["price"] = 9000,
                  ["buyer"] = "@Juuliska",
                  ["itemLink"] = "|H0:item:140433:5:1:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0|h|h",
                  ["quant"] = 1,
                  ["wasKiosk"] = true,
              },
              [13] =
              {
                  ["id"] = "1374320338",
                  ["seller"] = "@HankJohnson",
                  ["timestamp"] = 1597574012,
                  ["guild"] = "Imperial Trading Company",
                  ["price"] = 12039,
                  ["buyer"] = "@Egor20072001",
                  ["itemLink"] = "|H0:item:140433:5:1:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0|h|h",
                  ["quant"] = 1,
                  ["wasKiosk"] = true,
              },
          },
          ["itemIcon"] = "/esoui/art/icons/quest_letter_002.dds",
      },
  },
}
local eventArray = { }
local count = 0
local newSales

for itemNumber, itemNumberData in pairs(itemTable) do
  for itemIndex, itemData in pairs(itemNumberData) do
    if itemData['sales'] then
      local dup
      newSales = {}
      for _, checking in pairs(itemData['sales']) do
        dup = false
        Debug(tonumber(checking.id))
        if checking.id == nil then
          dup = true
        end
        if eventArray[tonumber(checking.id)] == true then
          Debug("hey this was true")
          dup = true
        end
        if dup then
          -- Remove it by not putting it in the new list, but keep a count
          count = count + 1
        else
          table.insert(newSales, checking)
          eventArray[tonumber(checking.id)] = true
        end
        Debug(eventArray)
      end
      itemData['sales'] = newSales
    end
  end
end

Debug(newSales)
Debug(eventArray)