A semaphore blade and a partially open lattice mast without a mast sign are included. The lattice mast is done in black, white, and red. The prototypical height of the lower area is in black when using below-baseboard mechanism mounting. The signal changes from red (Hp 0) to green (Hp 1). Find more Märklin explanation videos on our YouTube Channel. Spare parts for our articles can be found here in our spare parts search. 150th Anniversary of the First Signal Regulation for Railroads in Germany.