Does anyone recognize this logo cast on the side of this large vise I just picked up? It says Chicago Heavy Duty and has a lightning bolt in the middle of it but I can’t find anything out about it. When and where it was made? Is Chicago the brand maybe? I'm guessing it was probably made in Chicago. It probably weighs between 50-70 lbs. Thanks in advance for any info! -John
![IMG_1374.jpg IMG_1374.jpg](https://www.hobby-machinist.com/data/attachments/447/447568-d4d962f15e98bfa0b1e2f8b5b46a55f2.jpg)
![IMG_1376.jpg IMG_1376.jpg](https://www.hobby-machinist.com/data/attachments/447/447569-83437d7df89c9e8622bbada5f44d971f.jpg)
![IMG_1375.jpg IMG_1375.jpg](https://www.hobby-machinist.com/data/attachments/447/447570-4da69d7dcec217c689600cc72901caaa.jpg)
![IMG_1377.jpg IMG_1377.jpg](https://www.hobby-machinist.com/data/attachments/447/447571-5f45894d71dc9a445d94ab3f912c38da.jpg)
![IMG_1374.jpg IMG_1374.jpg](https://www.hobby-machinist.com/data/attachments/447/447568-d4d962f15e98bfa0b1e2f8b5b46a55f2.jpg)
![IMG_1376.jpg IMG_1376.jpg](https://www.hobby-machinist.com/data/attachments/447/447569-83437d7df89c9e8622bbada5f44d971f.jpg)
![IMG_1375.jpg IMG_1375.jpg](https://www.hobby-machinist.com/data/attachments/447/447570-4da69d7dcec217c689600cc72901caaa.jpg)
![IMG_1377.jpg IMG_1377.jpg](https://www.hobby-machinist.com/data/attachments/447/447571-5f45894d71dc9a445d94ab3f912c38da.jpg)