I understand there are a number of Mark 2's still out there and many can be restored to use.
Recently another new Mark 2 Owner sent me a copy of a Mark 2 Manual which I restored and retouched. Subsequently, Russ acquired one with an even more pristine manual (with more parts pages) that he is working to send me when he can so I may restore it.
You can find the restored Mark 2 manual in the Mark 2 folder on My Google Drive which you will find the link to in this post. Since data may move sources from time to time, use the My Google Drive link in that post as it is the ONLY place I update changes.
You will find it at viewtopic.php?p=185690#p185690
I have attached a scan of the page from Montgomery Ward 52-53 catalog that shows the guard.
I have also attached a photo of a 10E / 10ER lower saw guard, and one of the early Mark V saw guard from that period. You can see the family resemblance before they moved to the round vacuum port.
You can also see the two versions of the 10E / 10ER upper belt guard and the elusive lower belt guard.