Going Up

Last week I was removing some ear-pieces from a few old case Ericofon ‘necks’. Those necks were part of a large batch of parts that I got some time ago. And I desperately needed the speakers for other Ericofons (some New Old Shells or NOS) to be completed. When I was opening up one after another a surprising result was revealed to the world ;-). Never before I had a good look at the inside of the old case ear-piece. And this is what I saw.

SwedishColors

The only information about the necks is actually this. There was no body of the shell attached, only the top part was there. So I do not know anything on the origin of the shell. These numbers seems to be some kind of color code, or…?

The known color codes, at least to me, are the ones from the models produced by North Electric in the US market. Here they are listed in ascending order:

North Electric Color Codes
Code Color Code Color
520536 Taj Mahal 520545 Chartreuse
520537 Sandalwood 520546 Aqua Mist
520538 Sahara 520547 Accent Green
520539 Royal Dubonnet 520548 Charcoal
520540 Riviera 520549 Wedgwood
520541 Princess/Petal Pink 520550 Mandarin Red
520542 Nordic Blue 520551 Persian Gray
520543 Golden Glow 520552 Crystal Mint
520544 Dusty Rose 520553 Candle Glow

Plotting the numbers from the picture in the same table gives a very surprising result…

Generic Color Codes
Code US Code Color Code US Code Color
520536 510852 Taj Mahal 520545 Chartreuse
520537 510853 Sandalwood 520546 Aqua Mist
520538 Sahara 520547 Accent Green
520539 Royal Dubonnet 520548 Charcoal
520540 Riviera 520549 Wedgwood
520541 Princess/Petal Pink 520550 510866 Mandarin Red
520542 Nordic Blue 520551 Persian Gray
520543 Golden Glow 520552 510868 Crystal Mint
520544 Dusty Rose 520553 510869 Candle Glow

The pattern matches with the colorsequence. If the other colors exist the numbering should be logical. Where the numbering comes from I still have to sort out. Is it Swedish numbering? But then the NE specific colors should also be applicable in Sweden? Or is it just the shell number? The 5205xx code seems to be a combination of manufacturer, ringer and color. So more a configuration code. No idea on this (yet).  Need to dig somewhat deeper into this.

I appologize the way I removed the ear-pieces, it was not subtle… I admit. But opening up one after another made me more curious on the next number.

Disclaimer: for this experiment no Ericofon was harmed.

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