Author Topic: Serial number on early plastic 302 housings (Read 3799 times)

poplar1 · « **on:** December 21, 2012, 03:39:22 PM »

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

Doug Rose · « **Reply #1 on:** December 21, 2012, 09:29:51 PM »

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

ESalter · « **Reply #2 on:** December 21, 2012, 10:17:15 PM »

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 · « **Reply #3 on:** December 21, 2012, 10:55:43 PM »

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

poplar1 · « **Reply #4 on:** December 22, 2012, 08:35:15 AM »

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.

poplar1 · « **Reply #5 on:** May 25, 2014, 09:54:06 PM »

6 26 41 21850

unbeldi · « **Reply #6 on:** May 25, 2014, 10:05:14 PM »

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 · « **Reply #7 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

unbeldi · « **Reply #8 on:** May 25, 2014, 10:15:47 PM »

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

unbeldi · « **Reply #9 on:** May 29, 2014, 12:17:59 PM »

poplar1 · « **Reply #10 on:** May 29, 2014, 01:36:13 PM »

Ivory housing with 4 digits:
5 20 41 4193

unbeldi · « **Reply #11 on:** May 29, 2014, 01:47:36 PM »

unbeldi · « **Reply #12 on:** August 03, 2014, 05:02:45 PM »

unbeldi · « **Reply #13 on:** April 23, 2015, 10:04:31 PM »

Dan/Panther · « **Reply #14 on:** April 24, 2015, 12:24:21 PM »

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

If your visit to the Classic Rotary Phones Forum was enjoyable or helpful, you may tell us by making a small donation. The donation can be made safely via PayPal and will help to off-set the costs of the Forum operation. Thank you!