W.E. #144 Marked Receiver

[wds]

Along with the scissor phone I got two of these marked receivers with Western Electric marked on the end.  Judging from the smell when I cleaned them, they are hard rubber.  Has anyone seen a 144 marked like this before?  Approx date of the receiver?

[unbeldi]

Along with the scissor phone I got two of these marked receivers with Western Electric marked on the end.  Judging from the smell when I cleaned them, they are hard rubber.  Has anyone seen a 144 marked like this before?  Approx date of the receiver?

Hmm, the last patent date is APR 16, 1918.  It involved some improvement of constructing the coil.
But this is the same patent date as on those that only print the dates directly, in fact all three are the same patents.

[Sargeguy]

Interesting.

[wds]

so your saying that the patent dates on the 2nd example refer to the exact patent numbers on my receiver? 

[unbeldi]

so your saying that the patent dates on the 2nd example refer to the exact patent numbers on my receiver?

Yes, that's what I meant.
I believe my picture shows what is commonly found on the 144.

[unbeldi]

US1062082 1913-05-20 1912 Craft Reynolds WECo--Telephone Receiver
US1063237 1913-06-03 1912 Anderson WECo--Welded Receiver
US1262838 1918-04-16 1917 Poole WECo--Electromagnetic Apparatus