With filigree brass mast, authentic varnishing and underfloor drive unit. Disk is movable and lighted. Maintenance free by LED lighting. Different kinds of block signals are possible. Whereas block signal item 4517 is a version with flange socket which is single standing by the track, block signal item 4515 is a lower standard version. It is used e. g. directly in front of a home signal. Signal aspects Sh0 and Sh1. Height: 5,5 cm.
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