It does look like it has been made by KTM / Samhongsa or similar, but has no markings. O GAUGE for 2 RAIL OPERATION. This Kit / Scratch built locomotive is in excellent condition.
Along Classic Lines (Manchester) ACL004 L&Y Class 21’Pug’ 0-4-0ST Saddle Tank Loco No. For two and three rail operation. A limited edition of just 50 models – supplied with certificate. Not suitable for Children under 14 years.