Identify this dog bone

Maybe could assume it's BD. Send the pic to their customer service department and ask them if you should retire it. They might know the manufacture date. I found an old Petzl draw a few years back at a crag that was clearly past its prime, but the tag date code didn't match anything on their website. I emailed them with a pic. It was made in 1999.

Wild Things also made dog bones that looked like that too for a bit.

I'm pretty sure I've bootied a Blue Water draw that looked like that. That pattern screams 2000-ish to me. 

Those all sound like pretty good guesses.  Did ABC make some bones like that?

I think the brand is YGD! 

Brandon Rwrote:

I'm pretty sure I've bootied a Blue Water draw that looked like that. That pattern screams 2000-ish to me. 

Yup, my slings from late 90s had that diagonal pattern.