Glad to help.
I don't know if these will fit exactly for Blue Box cabs but Laserkit makes "glass" for Athearn engines.
http://laserkit.com/windowho2.htm
Good luck, Ed
Thanks Ed, you're always very helpful! One is missing the plastic insert and both are lacking numbers to apply to the number boards.
IDRickWhere can I acquire number boards?
https://tinyurl.com/y7s42kuw
https://tinyurl.com/ycfgtg8r
OR do you mean the clear plastic insert is missing? In that case, Ebay.
Good Luck, Ed
I have two blue box athearns (GP38-2 and GP40-2) but lack number boards. Where can I acquire number boards?