Here is a Snap-On Compression Gauge Set MT308L with its case. I'm listing it as used, but it actually seems unused.
SnapOn Compression Gauge Set MT3081
SnapOn, Compression Gauge Set MT3081
SNAP-ON COMPRESSION GAUGE SET MT308L
Snap-On EEPV600 Automotive Compression Gauge Set Never Used.
Snap On Tools Compression Gauge Set MT308KB with 3 Hoses *Used
USED, "MOTOMETER" DIESEL COMPRESSION GAUGE SET, #623 002 1002