Insulator Tester Railway & Industrial Engineering Co. Instruments Vintage USA

Description

Insulator Tester Railway & Industrial Engineering Co. Instruments Vintage USA. Condition is Used. I don’t know anything about this tester. Looks to be in good condition but I have no idea how to test. Case is in worn but solid condition.
Make sure that this part is compatible with your application.
See pictures of the item you will receive. Pictures are the main part of the description so please examine carefully. Ask questions before bidding and/or purchasing. See my many other listings. It may also be possible to combine shipping on some items.
Some of my items come from auctions, garage sales or estate sales. I do not smoke in my home, but there may be items that come from a smokers home. If I notice the smell, I will mention that in my listing. If it's not mentioned that doesn't mean it is for sure from a smoke free home, I just couldn't smell it. I do have dogs and outdoor cats. I keep them separate from the merchandise being sold. There may possibly be a stray hair I might not see. If you have allergies please be advised of this before purchasing.
I have done my best to describe this item and it's condition. I have pointed out all the imperfections I see and have done my best to find the appropriate names, titles and descriptions of the item. If the picture does not match the name of the item correctly please let me know. I have tried to take detailed pictures and highlight any flaws. That being said once you've inspected the pictures closely and read the condition description, all other questions about the item should be asked before purchasing. This item is sold "As Is" and slight flaws or misidentification of the item name, will not be terms for a refund.