That's one Ace Double I don't remember ever seeing. And I would certainly remember because the kilt looks a lot like my wee two-pleated kiddies's kilt!

Actually, I'm impressed by the kilt length since my memory tells me that they were generally worn much longer at the time of the illustration. But of course the length was probably for the sake of manly sexiness.

The cordless remote hole puncher in the holster is a Colt Model 3511 I believe.