Photo ID help - delrin or bone?

cilohaefink said:
Delrin was invented in the 1960's. That knife was made in the 1920's to 1930's. You do the math.
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This completely misses the intent of the question posed by the OP, and isn't helpful. Whether Delrin or some other of the likely dozens of synthetic variants out there, I'm pretty sure he was just asking whether it's synthetic or bone. Most of the members here already know that when we hear 'Delrin', sometimes it's just a generic reference to synthetic scales.

David
 
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knarfeng said:
:eek:



:eek::eek:


Golly Gosh Gee Whillerkers! fellas.

Dan doesn't want to destroy it. He just wants to know what it is.


Dan,
Wait till it gets into your hands, then post more pictures.
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How is poking it with a paper clip destroy it?? unbend the paper clip so you have it in a flat line. when it is hot ( the tip ) you just touch the bone.
 
richard thurman said:
How is poking it with a paper clip destroy it?? unbend the paper clip so you have it in a flat line. when it is hot ( the tip ) you just touch the bone.
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And if it's Delrin, how much of a mark is it going to leave? Would that not ruin the Delrin in most of our eyes?
 
Well shoot, the mystery will remain unsolved for a while longer. I got a package from the auction seller today and opened it up to find... an old lace doiley...

I got ahold of them and they got the packages switched before shipping. The Robeson is on its way back to the seller now, then coming back to me. Another week or so and this should be solved!

Dan
 
But did you test to see if the doily was natural linen or polyester? :D
 
Maybe it's a kit ? ;)

Also heard that you could heat up a small needle, that way it doesn't leave an intrusive mark if it is delrin...
G2
 
Absolutely, 100% positive that is bone.

Robeson did not produce that pattern after 1940 and probably not for several years prior to that. They didn't start using Delrin until about 1959 or 60. The only Delrin that Robeson ever used was of a strawberry color, although it did fade to pink over time. After 1965, when Robeson went out of business and the plant in Perry, New York closed down, the name "Robeson" was purchased by a company called Cutler Federal. They had knives made for them by Camillus and they did use some brown colored Delrin, but it did not look anything like the handles on your knife.

Here's a similar, but not identical pattern:



If the tang stamp on your knife has "ROCHESTER" or ROCHESTER, N.Y." on it, the knife dates 1920's 1930's.
 
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