I recently got lucky enough to pick up these engines recently. In brass, no less ! Here's my problem. The DRGW SD-45-T2 is in Black/Orange and made by Samhongsa; the ATSF SD-24-Low Nose is in Black/Silver Zebra stripes and made by DaiYoung and has a Kato mechanism ! Both came unnumbered and I've been trying to find pictures of them so I can get a correct number. Any help would be appreciated.