Bane NOR SF: shunting signal R28 showing the authorized movement with caution aspect.

These quite clear signals were replaced in 1970 by somewhat cryptic '9 eyes' a single signal with 9 globes that can give any which way direction.

Amsterdam Nieuwezijds voorburgwal kruising Raadhuistraat.

© Henk Graalman 12666

Railway Educational Association 1913 training booklet for firemen.

SNCF class BB15000 built by Alstom/MTE from 1971 to 1978

Taken from the D56 Pont de Riedisheim facing away from the station

Here is another view of Hohman Ave in Hammond Indiana with a passing IHB freight. This shot was taken in 2002

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Taken with Agfa Record III 6X9 on Agfa Optima 200 (expired 2006)

Please compare to this one taken 34 years ago:

www.flickr.com/photos/30445376@N05/3944731117/sizes/l/

This is a tower in St Lambert QC on the CN line right across the bridge from downtown Montréal.

Poste d'Aiguillage en St-Lambert QC sur la ligne de CN.

I now have a signal collection!

This was from the collection of a former railroader. This is a very one of a kind item. This was the model board for Pence Tower (aka MJ Tower) in Momence, Illinois. I don't know really anything about this tower so any photos of it in operation or information about it would be super helpful. I really would like to fix this up so it can operate again!

Interlocking Signals

SO Tower in South Fork PA. I'm not sure if it's still being used or not..

SBB CFF FFS: local control panel from which the trainmaster can see if the departure signal is clear, and can operate the controls to turn on the departure clearance signal. (Image scanned from an original paper).

ТОМАС МУР (БЕЛЬГІЯ). OKTOPHONIE & SIGNALE ZUR INVASION | KARLHEINZ STOCKHAUSEN

Концерт-інсталяція до 90-річчя Карлгайнца Штокгаузена на фестивалі актуального мистецтва Porto Franko 2018, Івано-Франківськ, 2018.

1968

SNCF Guidon d'arrêt (GA) signal

In some cases (protection of shunting movements, opened crossing...), the guidon d'arrêt is used, as well on the main tracks as on the shunt tracks, in the place of a handheld stop signal.

Just as the closed carré, the closed guidon d'arrêt commands the driver to stop before the signal.

The open guidon d'arrêt never means 'track clear' but simply that the signal is not to be taken into account.

These 2 signals are on the old CASO sub near Tilbury Ontario.

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Clear Block

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AAR American Railway Signaling Principles and Practices - Semaphore Signals

Distant Switch Signals

Cécums pyloriques en vue transversale. Suite à la relativement faible longueur du tube digestif chez les esturgeons, la surface de réabsorption est augmentée par une rampe hélicoïdale (voir aussi P6d_009 à P6d_011) et par des cécums pyloriques. Les replis de la muqueuse

de ces diverticules sont nombreux et rendent leurs lumières irrégulières (non colorées). Les cellules de l’épithélium sont prismatiques (semblables aux entérocytes, cellules banales de la paroi intestinale) et quelques discrètes cellules muqueuses sont présentes, signalées par les flèches bleues. Un délicat réseau conjonctif (étoile jaune) ceint chaque portion cécale.

- Pour plus de détails ou précisions, voir « Atlas of Fish Histology » CRC Press, ou « Histologie illustrée du poisson » (QUAE) ou s'adresser à Franck Genten (fgenten@gmail.com)

----------------------------------------------------------------------------------

Pyloric caeca in transverse section. Considering the

relatively short length of the sturgeon adult gut, absorptive

surface area is increased by the presence of the spiral

valve (see P6d_009 to P6d_011) and pyloric caeca. The richly folded caecal mucosa edges an irregular (unstained) lumen. The epithelial cells are typically columnar in shape

(enterocyte-like cells) and some small goblet cells are

also present (blue arrows). A delicate connective tissue (yellow star) surrounds each caecal portion.

- For more information or details, see « Atlas of Fish Histology » CRC Press, or « Histologie illustrée du poisson » (QUAE) or contact Franck Genten (fgenten@gmail.com)

C&O 1958

Railjet 1116 206, Nase der 1116 254, Signale, Details auf den Bahnsteigen

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Railroad Grade Crossing target signals and Track Pan Signals

Track pans were a very interesting concept for supplying water without having to stop at a water tower and were used by a few railroads in the US to help keep passenger trains running quickly and on time. The track pan consisted of a trough between the rails which was filled with water. Engines that were equipped would have a scoop under the tender which , when the signal showed it was okay to lower, would be pulled down by a lever in the cab and this would allow the engine to scoop water at speed. When the signal showed raise the scoop the lever would move the pan back into the bottom of the tender.

Notice the difference between NYC's signal and the B&O one.

SBB CFF FFS: from top to bottom, supplementary plate indicating that this signal can be main, combined signal for the brake test and the departure clearance indication and main signal of L-system showing the stop aspect. (Image scanned from an original paper).

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SNCF class BB15000 built by Alstom/MTE from 1971 to 1978

Taken from the D56 Pont de Riedisheim facing away from the station

Sur chacun des ports de Moelan sur mer, vous verrez un phare d'alignement dont la mission est de signale l'entrée du port.

Site Internet - Facebook - Youtube.

Pentax K200D/Tamron AF 18-200mm f/3.5-6.3 XR Di II LD.

185 519-6 der ITL in Pirna

This is the special "Shorty" semaphore signal in Crawfordsville. It's on a short mast for better visibility.

This is page 1 and contains Manual Block System Rules. Notice the unusual style of triangular signal to show train orders and manual block aspects.

(View original size)

Signalling System L, Combined Signals:

Combined Signals show either Main aspects or Distant Signal aspects. So, if we define a Main Signal as a signal which is able to indicate Stop, Combined signals with the additional board (showing the dot) are Main Signals, only.

The Consolidated Code Of Operating Rules 1967

Page 17 about Automatic Block Signals

Interurban signals from 1911