How does the ashtray cover fit on?

[aircobra]

After a monumental failure to locate an original ashtray lid, i decided to have one 3d printed . it came out OK mainly because the original lid has a bit of a texture at the top

However, I cant work how it goes on. The base has pins cast into it, whereas the lid just has holes inside the mounting legs. Obviously it does not fit 

see photo

are the holes in the lid supposed to be slots so they can be pushed onto the posts?

There's also meant to be tiny coli spring the holds it shut.

Does anyone have one I can copy or at least a photo?

 

Edited July 7, 2020 by aircobra
updated description

[gav240z]

You unscrew the screws on the side of the ashtray and then put the lid in place and retighten the screws into place locking the lid in.

Did you make the 3D piece or have someone scan and make you 1? If so what does it cost?

[aircobra]

I've got an STL file - so I had it made for $10 posted .

I actually wanted in ABS ( which is what I think the original was), but he couldn't do it.

Also the corners on the original were a bit more rounded