Vintage 18 drawer Mac toolbox set

Vintage or antique 18 drawer double stacked Mac rolling toolbox ,…all the drawers open nice … and whisper quiet….the drawer handles are all in really good shape and have the raised embossed print saying Mac tools which I’ve never seen before . you can feel the letters on the handles with your fingers some people might want to  repaint the front it but all in all it is in pretty good shape … and I think quite rare. I haven’t been able to see the exact model anywhere you see one anywhere let me know the single boxes usually sell about 300 to 500 apiece and this is a double box, but it is rare so lid fully closes could use a paint job on the outside, but I’m afraid that would lose its uniqueness … I would need help moving all the tools out before you take it..have a look at it fully loaded open close the drawers .  the drawers work really nicely ….whisper quiet I have an uncle that was at the GM dealership for over 50 years. He retired I believe in 2007. He said it was his first box any questions feel free to text. It is still fully loaded with my tools. I’m still currently using it,  so I would need help emptying it out oifsomeone really needed it fast. Don’t wanna get rid of it, but was in a bad car accident and  have bills to pay offers may be accepted, but not too low cash only thank you I have been unable to find any serial numbers supposedly on the older boxes in the bottom left corner on the outside back of it. There’s a stamp but the paint is pretty faded and I don’t see a stamp. I’m assuming it’s 40 to 60 years old. My uncle is 83 I think now.