Very Nice Western Electric 231-D With Good Filament

Description

Please be sure to review all my other auctions after you have looked at this one!  I will be listing a broad and diverse range of vintage communications and technology items, related books, periodicals and ephemera...  Something for everyone!
This is a Western Electric 231-D With A Good Filament!!  This tube was used in the WE Type 32A and 55A Amplifiers!
The tube was tested on an Signal Corps I177-B tube tester with the following results:
Test results were 2700 with a minimum of 1500.  Great results!
Internal construction is excellent.  Leads are crisp and clean red.  Etching on the glass is clear and visible...
I have tried to take good pictures to indicate the physical condition! Ask if you have any questions...
If you collect Western Electric vacuum tubes, this might be for you!
Shipping weight will be about 1.0 pounds.
I will pack all items properly and with great care.  I have been shipping these kind of vintage items worldwide since the late 1980's.  Buyers are responsible for shipping, insurance and material costs and any applicable duties.  I usually can ship within one business day after receipt of confirmed payment.
International customers are very welcome! Bid with confidence...international shipping is not an issue!
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If you are new to eBay with no prior feedback please contact me prior to bidding...thanks!
THANK YOU FOR LOOKING!