Which company?
No
Yes all you have to do is pull the trigger once and let go in about a second.
Very nice. I wish I had one. Did you have a question about it?
Some models of Diamond Arms were made by the Crescent Fire Arms Company for the Shapleigh Hardware Company of St, Louis, Mo. between 1982 and about 1922.
It matters if you are not cleaning by the trigger. You could accidentally hit the trigger than zoop you lose something on your body
The model number should be stamped on the barrel just above the trigger guard.
Nothing.
No, you need to call Browning.
Can't tell without full description of all markings and features
50-600 USD or so
You will need to get it lettered by S&W