That's true, but it doesn't match up well with a traditional track layout. These "custom" crossovers looked like ACG's design, and the guy had apparently worked out the problem of power interruption in the crossing--The ACG ones were only 90 degrees because that's provided the shortest distance of power interruption, so that one wheel would always be on a conducting rail. If anyone has his name/address maybe one of could contact the relatives to see if the tooling still exists and might be available for purchase. It's a long shot!
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