20 items in 15 columns - generated from data/1098/items/definitions.json
20 with art, 0 without art.
17 of 20 items on this page have a server id different from the client id, marked as "differs" in both id columns. They differ because the key of data/1098/items/definitions.json is the server id (the number to use in commands and on the map), while definition.id is the client id — and the client id is the index of the art in Tibia.dat / Tibia.spr, so the sprite file below is named after it. Check which one a command or a wiki link is asking for: reading the art by the server id shows the drawing of another item, with no visible error.
Weight shows the raw value from data/1098/items/definitions.json and the same value in ounces, as the game shows it: the datapack stores centigrams and the engine divides by 100. The divisor was measured in the engine (the weight is computed as weightInUnits / 100, described in its source as "1/100 oz units", and the tooltip renders (weight / 100).toFixed(2) oz).