Nice group, not far off a full set.
I’ve added notes to your photo.
Based on the wording and the pattern of the badge these are all 60s to 70s. In the mid 70s the wording was changed from Infantry Corps to The Infantry Corps.
The General Staff badge, in the 50s was the standard badge of the IDF non specialist corps, and then at some point it was only used by senior officers, thinner stamped version you have is the last version made.
I don’t think it is correct for the beret, it’s normally only seen on peaked caps, I’ve never seen it on a beret before. I think it went out of use with the peaked caps late 70s.
Does the beret have a date stamp? the red beret for the paratroops came into use in the early 80s replacing the maroon version.
I’ve attached what, in my opinion is the correct badge, it has the additional letter in front of ‘Infantry’ I mentioned above which you can compare with yours. That being said, a para who is then transferred to another corps would adopt the badge but keep the beret.
This is a good reference site for images
https://allbadges.net/en/search/83 I’ve not found a good book that has a detailed history or chronology.
As I’m contradicting what Ian and Jerry posted, I will attempt to clarify,
1. Adjutant is a book with sword through the center.
2. Engineers has a castle with a sword through the center.
3. Transport, there was Transport and Supply Corps, similar badge but with both words, this was reduced to Supply.
Steve