AFAIK the 100 were consecutive from memory.
Not many were sold outside the 100, since at the time LE had no use or connection to get them
No one else was able to swing a deal with maremont, other than perhaps a couple insiders and that number is very low. It took a 100 before they would even consider the order and even back in the day, that was a LOT of cash. The price was still fairly high, even then.
Any other guns with maremont trunions would not list them as the mfr., so they aren't all that relevant. There are a few trunions out there unnumbered but they are sketchy at best, may or may not be finished completely, and unlikely heat treated so they could be stamped. There are a number that were demilled and torched. Again any of these that made the registry will be marked from a different mfr and likely marked elsewhere with the actual manufacturers name.
There are a handful of new trunions from unfired guns that were demilled (yes believe it or not our gov. cuts up brand new guns), but the trunion escaped the torch. These are complete and numbered, but not likely you'll ever see one for sale. HTH