Yes some of Roberto's cymbals have an etched signature and other things (like Ka). But given that not all have a signature that isn't diagnostic of anything in particular.JazzDrumGuy said:1) There are videos of Roberto on YT and if I recall, in one of them, he etches his signature onto a cymbal, so that could be authentic.
2) Oddly, the auction ended early for $1.00......I think it said error in the listing.
Unfortunately "error in listing" tells us nothing about the eBay outcome. For example, these three very different outcomes
sold privately off eBay
take down due to eBay action on the scam reports
they will come back later when the heat dies down
would look the same. I'm a bit of a student of auction outcome codes as part of my extensive pricing research. That's how I've become aware how untrustworthy the outcome codes are.