Garfield Clock Delay Vintage Clock Trigger Click Syncronizer

via this auction

"The Clock Delay compensates rhythmic offsets caused by clock response time differences between various makes of sequencers, drum machines, arpeggiators, and synthesizers. Each channel's rotary control sets delay time in 2 millisecond steps which are continuously variable with fine control knob.

Instructions are printed on top of case."

Garfield Electronics also made the Doctor Click posted here.