Inland Bolt Question and Pic Posting Options?

Has anyone ever seen a A.I. 4 Bolt?

Attachment 108682

Asking just to compare because of just recently seeing my first O.I. 4 Bolt.

Attachment 108681Attachment 108680



Here I'm trying a picture TEST, LIST:

Attachment 108681Attachment 108680Attachment 108682

TEST- DETAILED:

Attachment 108680Attachment 108681Attachment 108682

Above results of a testing between Thumbnails, List and Detailed posting of my pictures.
I learned nothing about what posting using LIST or DETAILED means ......... :banghead:

My late production Inland has an AI type 4 bolt.

https://www.milsurps.com/images/impo.../eObpmht-1.jpg

IRM,
I cant make it out?

My late Inland 6.9M has an OI 2 bolt (round) and I have a 700K Inland with the same marking but it's a flat bolt. - Bob