Under the reference VOLLMER 42503, find a lot of 2 tunnel entrances with fixing, for double track, at the scale HO 1/87th, ofe dimension 147 x 8 x 149 mm.
The manufacturer Vollmer:
Vollmer GmbH & Co.KG, or Vollmer, is a German manufacturer of models and accessories for miniature railways. It was founded in June 1948 and its initial activity was the manufacture of metal collar buttons. At the same time, it also began to develop the manufacture of plastic model train accessories and presented a patented catenary system for HO 1/87th scale model toy trains at the Nuremberg Toy Fair in 1949. By 1954 the company had begun production of HO scale model houses, and by the 1970s Vollmer had a large company that included European and American models!
After ceasing trading in 2014, the company was acquired by the Viessmann/Kibri house!