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Serial number on early plastic 302 housings

Started by poplar1, December 21, 2012, 03:39:22 PM

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poplar1

Is there a list of numbers found on 1941 thermoplastic housings? Are these serial numbers or lot numbers or what?

Here is one dated 10 17 41:  20868

http://www.classicrotaryphones.com/forum/index.php?topic=330.0
shows one dated 81441: 26868
"C'est pas une restauration, c'est une rénovation."--François Martin.

Doug Rose

I had one, it was in this thread about shrinking thermplastic.

http://www.classicrotaryphones.com/forum/index.php?topic=6211.0

These were 1941 thermoplastic trials that WE did while still making metal 302s. The one I had was date 7/31/41. They are quite cool but usually cracked or severely shrunken...Doug
Kidphone

ESalter

I'm pretty sure my 460 has a serial number like that.  I'll take a look tomorrow and if it does, I'll take a picture. 

Phonesrfun

Are these "Bell System" phones or ones issued outside the Bell System, maybe military?
-Bill G

poplar1

The 10/41 set has a Bell System handset. Large numbers for date and other number are now white and on the inside bottom edge of this housing.
"C'est pas une restauration, c'est une rénovation."--François Martin.

poplar1

"C'est pas une restauration, c'est une rénovation."--François Martin.

unbeldi

I made a list at one time of my observations of these numbers on ebay phones, from those here in the forum, or where ever...
I have one 1941 plastic housing too, late, like 11/41 or so, and by then it appears to me, these numbers were much smaller.

I sorted the numbers I had by dates  on the housing or base, but the correlation was not consistent, IIRC.  I will try to find that data....


poplar1

I don't see any correlation either:

6 26 41  21850
7 31 41  21790
8 14 41  26868
10 17 41 20868
"C'est pas une restauration, c'est une rénovation."--François Martin.

unbeldi

#8
The date and serial on this housing is:  10 29 41 24327

unbeldi

#9
.

poplar1

Ivory housing with 4 digits:
5 20 41   4193
"C'est pas une restauration, c'est une rénovation."--François Martin.

unbeldi

#11
.

unbeldi

#12
.

unbeldi

#13
.

Dan/Panther

#14
Quote from: poplar1 on May 25, 2014, 10:08:14 PM
I don't see any correlation either:

6 26 41  21850
7 31 41  21790
8 14 41  26868
10 17 41 20868

Experimenting with alternate materials, preparing for a possible world conflict ?
I have always been under the impression, that the United States knew the attack on Pearl Harbor was coming ? If that material is Nitrocellulose, isn't that critical in Bomb making, the excess shrinkage, and cracking sounds like Nitrocellulose ?

D/P


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