Key Authenticity

[John Betsch - "SADIE"]

Preparing to take my Pagoda for a ride, I happen to glance at my keys and noticed how "weathered" they appeared. 

I checked  the Tech Manual and see that it appears the original keys were made by a Neiman and a Ymos Company which mine are as shown.  My keys each have the key code stamped on them that matches my Data Card.  I assume they are the original keys for my '65.

So, that means these keys are fifty eight (58) years old.  Mercedes makes a product to last!

[lreppond]

If the key codes are stamped into your keys then with a high level of certainty, these are original to the car.  Amazing!

A locksmith who has helped me said that these keys are made of steel, not brass with a chrome plating.   This makes them more durable and less prone to breaking.  I’d say your keys are proof positive of that opinion. 

[rwmastel]

Mercedes makes a product to last!

You mean Ymos makes a product to last.

[Mike Hughes]

European key blanks are generally steel. North American key blanks are generally made of softer brass or aluminum. Most locksmiths on this side of the pond won't cut a steel blank as one pass will destroy their cutting wheels, designed for cutting the softer blanks.

[John Betsch - "SADIE"]

Never thought of it before, but based on this thread, will have to add " this Sl also retains it's original (almost sixty-year old) keys" to my car info.

[MikeSimon]

When did the cars start to have a plastic handle?

[Pawel66]

You mean plastic key head?

As of ident. no.: 044 010356 - this is what I see in parts list when Master Key and plastic key head appeared.

[Jonny B]

Checking the list changes, published in Pagoda Notes, and available in the tech manual. The plastic headed keys became available on 250 SL, VIN ending in 3049.

[BobH]

When the safety changes were introduced, assume they changed from three keys to one fits all