If DR98008 is 3Z07, what OTP is 3Z12 please?

I hope this link to ltsv.com works. They have it listed as MPV 98907 98957

https://www.ltsv.com/rd/sighting_detail.php?id=17102

Could be any of the twin MPV sets - these tend to run as a generic 3Zxx or 6zxx code that isn't fixed to any particular machine. The pattern seems to be that a number lower than 50 is used for weedkilling jobs, higher than 50 for RHTT work, but not in every case. 3Z12 seems to be a very common code for weedkilling jobs in various areas.