
From the Ajin website :
We AJIN, all have actualized our enterprising to make the best quality and has made a continuous growth under company motto ; "LOVE each other, SEVICE to everybody and THANKS at all times" since its establishment in 1978 for high-precision SCALE MODEL TRAIN production.
Our starting of BRASS SCALE MODEL TRAIN production was very successful and it highly accepted its industry in U.S.A., Europe and Japan. We develope BRASS DIESEL LOCOMOTIVE MODEL in 1979 for U.S.A. market - it was first DIESEL LOCOMOTIVE MODEL from Korea.
Our steady investment for R&D, Q.C system and facilities being made continuous upgrading of our products and its highly prised by our customers.
Further, our developing of SCALE MODEL TRAIN reach to 3-RAIL SCALE MODEL TRAIN in 1990, PLASTIC SCALE MODEL TRAIN in 1991 and DIE-CAST MODEL TRAIN in 1992 and its makes great growth of our production volume.
In order to cover expention of production by above successed development, the 2nd factory has been constructed at Daechon in 1992.
In addition, we extend our business for PHOTOFINISHING ACCESSORIES in 1993. The high quality FILM SLEEVING MATERIAL and FILM TWINCHECK LABEL being produced by modern automatic facilities in Daechon factory and export to the major Photo Labs in over 40 countries.
AJIN hereby promise that we will continue our most efforts to produce best quality products well reputed in the world. We express our sincere thanks to all of our customers for their excellent cooperation and support.
Sincerely yours,
Cho,Nam-dal/President
History of AJIN PRECISION MFG., INC.
Jan. 1978    Established AJIN PRECISION MFG., INC.
  Oct. 1979    Started exporting newly developed BRASS DIESEL SCALE MODEL TRAIN(U.S.A.)
  Feb. 1986    Changed the coporation to Joint-stock company AJIN PRECISION MFG.,INC.
  Apr. 1987    Established Chunan Factory (The 3rd Factory in now)
  May  1989    Started exporting newly developed 3-RAIL MODEL TRAIN (U.S.A.)
  Jun. 1989    Started exporting BRASS SCALE MODEL TRAIN to JAPAN
  Oct. 1991    Started exporting newly developed PLASTIC SCALE MODEL TRAIN (EUROPE)
  Sep. 1992    Started exporting newly developed DIECAST SCALE MODEL TRAIN
  Nov. 1992    Established 2nd Factory at Daechon (new construction)
  Jan. 1993    Commenced PHOTOFINISHING ACCESSORIES business including FILM SLEEVING
               MATERIAL and FILM TWINCHECK LABEL 
  Nov. 1995    President prize awarded on Export Day
  Mar. 1997    Started exporting newly developed Japan prototype PLASTIC MODEL TRAIN
The coach illustrated below was manufactured by Ajin and imported by MTS. A brass O Scale Chicago North Shore and Milwaukee Railroad (North Shore Line) Cincinnati-built coach trailer from the car series #183-197.
 
Ajin for MTS unpowered coach trailer  | 
 
Ajin for MTS diner to match the trailer above  | 
 
Ajin brass Union Pacific gas turbine support engine  | 
 
Ajin brass Union Pacific oil car  | 
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