MÄRKLIN “O” gauge track layout using new profiled rails (1935/1939): - ref 3630 D 5x straight rails, 25cm - ref 3630 A 15x curved rails, 25cm - ref 1 Pr 13630 WB, a pair of manual turnouts (EB) - ref 3630 A 1/2: 2x straight sections, 18cm - ref 3630 D 1/12: one straight sleeper In very good condition; these rails were only manufactured for 4 years