Lest we forget where this one came from, here's a reminder.
The cab came with instruction manuals, a head-cab (cable) connector...
... & a quartet of detachable castors. The instruction sheet here is to ensure that no morons would attempt to attach them elsewhere other than the holes located at the under-side of the cab. Unlike my previous CRATE cab/castors, the ones here are the traditional screw-in version.
Here's the 1960A with my JVM410 sitting on top. Have been playing this all morning, it's a different tonal serving namely due to the different drivers in there & not about the brand name. Next up: Tone report.