The handle is not marked, only some of the attachments are marked Airco, some are only marked for size. The attachments shown in the box and laying on the lid fit the handle.
The pieces next to the box were in with it but I don't know what, if any, relevance to the set they may have. The box measures 11 X 7 X 2 inches. The total weight is 4 pounds 12 ounces. The photos are the best description, please examine them carefully.
The item "C81/ Vintage Airco/ Prest-O-Lite Gas Welding Torch Set Handle and 8 Att in Box" is in sale since Wednesday, January 9, 2019. This item is in the category "Business & Industrial\CNC, Metalworking & Manufacturing\Welding & Soldering Equipment\Welding\Other Welding Equipment". The seller is "zigafribits" and is located in Salisbury, North Carolina.This item can be shipped to United States.