Cantilevers, Gantry Bridges and Bracket Post Bridges

Cantilevers, Gantry Bridges and Bracket Post Bridges

Bridge signals are designed for installation on our cantilevered signal bridges, our bracket posts (signal platform) or on any gantry or cantilevered signal bridge that you may have purchased elsewhere. We manufacture signal kits for bridges with the...
Dual Head - 3 Color Signals

Dual Head - 3 Color Signals

Almost every North American railroad has its own unique design. You may specify what your road requires. As you see below we offer many arrangements. The heads are completely assembled with imbedded LEDs, a flush back with thin wires out the bottom and...
Dual Head - Searchlight Signals

Dual Head - Searchlight Signals

Solid I Beam Searchlight Signal Double Front-mounted Searchlight Masts Imbedded LED's Signal Features Rugged brass construction with lost wax castings, injection molded signal heads and 3/32" brass tubing for the mast. We manufacture...
Dwarf Signals

Dwarf Signals

 Signal Features Rugged brass construction with lost wax castings, injection molded signal heads and 3/32" brass tubing for the mast. We manufacture single and multi-head signals, bridge signals, dwarfs, brass cantilevered ...

HO Signals

HO Signals will be updated shortly...

Masts

Mast heights varied on the prototype railroads from 12 feet to 29 feet. Tell us what height you need. Height is measured from the bottom of the base to the centerline of the top head. We recommend: 16 - 18 feet for mast mounted 3 color or searchlight...

N Signals

N Signals will be updated shortly...

O Signals

    ISS is continuing to expand our signal lines. We have been assembling a limited amount of O scale signals using our own castings and parts from other manufacturers. If you have a particular signal you would like made, let us know....
Railroad Specific Signals

Railroad Specific Signals

Color Position B&O and Position Pennsy Signals In the 1920’s, the Pennsylvania Railroad replaced their semaphore signals with a position light type supplied by Union Switch and Signal Co. Although there were several variations in the basic signal e...

S Signals

S Signals will be updated shortly...
Single Head - 3 Color Signals

Single Head - 3 Color Signals

Almost every North American railroad has its own unique design. You may specify what your road requires. As you see below we offer many arrangements. The heads are completely assembled with imbedded LEDs, a flush back with thin wires out the bottom and...
Single Head - Searchlight Signals

Single Head - Searchlight Signals

Signal Features Rugged brass construction with lost wax castings, injection molded signal heads and 3/32" brass tubing for the mast. We manufacture single and multi-head signals, bridge signals, dwarfs, brass cantilevered bridge kits, and signal...

Signal Features

  • Rugged brass construction with lost wax castings, injection molded signal heads and 3/32″ brass tubing for the mast. We manufacture single and multi-head signals, bridge signals, dwarfs, brass cantilevered bridge kits, and signal platform kits for double tracks.
  • Design is based on General Railway Signal or Union Switch & Signal Company’s drawings. Types D, G, SA, B&O, and PRR are available. We can replicate to HO scale almost all signals used on US and Canadian railroads.
  • The signal heads are ready for installation, fully assembled and painted with color-correct LED lamps installed and sealed in place. Thin wires, 14 inches long, extend from the bottom of the signal head and are concealed either inside the mast or run down a bridge support. No fuss soldering wires to LEDs or sealing the LEDs into the sign heads.
  • The mast signals are either fully assembled or in kit form partially assembled. Both assembled signals and kits will require painting except for the heads. After painting, the wires from the signal heads are threaded down the center of the mast and the head is inserted into a mounting bracket.
  • The signal (assembled or in kit form) will be designed to your specifications as to type of signal, mast height, type of base, style of finial, position of the head on the mast, type of maintenance platform, and of course the style and number of heads.
  • Signals are easy to install on your layout. The 3/32″ mast extends about 1-3/4″ below the base. Merely drill a 3/32″ hole through you roadbed support, drop the signal in place, and connect the wires.
  • The ISS system is designed to prototypically signal diverging routes, passing sidings, and interlocking situations, and will operate similar to the prototype, indicating speed / route.