Correct me if I'm wrong Capcom masters, but since most, if not all Capcom games from the late 80s to mid-90s were all kits, they went with Dynamo (and later KOAM) to house all of their games.
Throughout those years, they released a variety of models. HS-1, HS-2, HS-4 (Big Boy), HS-5, HS-27, Showcase, etc. Each model having different features and sizes. The control panels were either set or modular to suit whatever game you chose to house in it. Many of the HS-1, HS-2 and HS-5 cabs you see now most likely have the "cut-corner" type control panels. There were other types though (see arcadeflyers link below).
For example, SFII:WW was released in a Dynamo HS-1 which is a 19" cabinet with no slide-out CP (for PCB and PS). That feature didn't get added on until the HS-2. Instead, in the HS-1, the board is mounted to the side of the cabinet. You can also mount the monitor either vertically or horizontally.
Some games had factory serial stickers stapled on the back above the back door. I believe SFII:CE shipped in a big blue cab. I forget which make and model (KOAM?). Prairied1ll0 owns an HS-5 (25") that has a SFIII:NG serial sticker.
Here's a good place to start:
http://flyers.arcade-museum.com/?page=archive&db=videodb&name=&year=&manu=191
Here's some pictures of my SFII:WW (currently have SFII:HF in it) in an HS-1: