I had this contact a while back and the reason I think it may be a good one is that the response came from someone who has been in the business long enough to know what a Teletype machine is. 

Adorable Supply <[email protected]> is the email for Richard Brown.

http://www.adorablesupply.com/

Adorable Supply

I'm copying below our conversation.  Note that it didn't involve later model machines which offered more options for paper size and orientation.

-----------

I am the contact person & resident historian.

On Fri, Mar 26, 2021 at 12:56 PM John, W9DDD <[email protected]> wrote:
Thank you for the quick response.

I seem to recall folks on the Greenkeys mailing list looking for 1"
tape.  Personally I made a score at a swap meet for 11/16" tape.  Unless
it turns out to be too old, I am set there.

Pin feed, I've enough to get through the restore phase, but will be
contacting ya'all once I get it working.

I will mention that you do have the 1" tape and a good variety of pin
feed.  May I mention you as a contact person?

---
----
The above comments or recommendations are SWAG. Use at your own risk.
John, W9DDD

On 3/26/2021 11:34 AM, Adorable Supply wrote:
> John
>
> I go back a long way with the Teletype 28's.  Many years ago Durable
> Supply, which was the predecessor to Adorable Supply, offered the
> teletype rolls in single ply to ten plies, a variety of color
> combinations, and the oiled perforator tapes in the 11/16 inch and 1
> inch widths.  Currently Adorable Supply still stocks both the single ply
> rolls and the sprocket feed papers in 1 to 6 parts and in many widths,
> since it is still used on so many other printers.  The following is a
> partial list of our in-stock sprocket feed items that would fit on any
> teletype printer:
>
>   * 1 part 8.5" x 11" white in #15 (3500/cs), #18 (3000/cs) or #20 bond
>     (2700/cs).  It is 8.5" width edge to edge.
>   * 1 part 8.5" x 5.5" white in #15 (7000/cs), #18 (6000/cs) or #20 bond
>     (5400/cs).  It is 8.5" width edge to edge.
>   * 1 part 8.5" x 3.66" white in #15 (10,500/cs), #18 (9000/cs) or #20
>     bond (8100/cs).  It is 8.5" width edge to edge.
>   *
>   * 1 part 9.5" x 11" white in #15 (3500/cs), #18 (3000/cs) or #20 bond
>     (2700/cs).  It is 9.5" width edge to edge.
>   * 1 part 9.5" x 5.5" white in #15 (7000/cs), #18 (6000/cs) or #20 bond
>     (5400/cs).  It is 9.5" width edge to edge.
>   * 1 part 9.5" x 3.66" white in #15 (10,500/cs), #18 (9000/cs) or #20
>     bond (8100/cs).  It is 9.5" width edge to edge.
>   * 1 part 9.5" x 11" canary, blue, pink or green #20 bond (2700/cs).
>   *   2-4 parts 8.5" x 11" white in 2 pt (1600/cs), 3 pt (1050/cs) or 4
>     pt (800/cs).
>   *   2-6 parts 9.5" x 11" white in 2 pt (1600/cs), 3 pt (1050/cs) or 4
>     pt (800/cs).
>   *   2-5 parts 9.5" x 5.5" white in 2 pt (3200/cs), 3 pt (2100/cs) or 4
>     pt (1600/cs).
>
> We can custom run (blank or printed) any roll or form that is not in our
> stock and there is not a problem with our blind drop shipping to
> multiple locations.  I will be looking forward to hearing from you.
>
> Richard Brown
>
> On Fri, Mar 26, 2021 at 11:19 AM <[email protected]
> <mailto:[email protected]>> wrote:
>
>     I see your computer paper listed as 8.5" wide.  My question is
>     whether that''s width after tearing off the sprocket holes, or final
>     width.  My requirement is for pin spacing of 8.0".  No need for tear
>     off edges.
>
>     My avocation is restoring old Teletype machines.  They came in both
>     a roll feed and a pin feed version. Getting foll paper doesn''t seem
>     to be a problem, although the quality isn''t that great from some
>     suppliers.
>
>     Tractor or pin feed is more difficult.  Most printers in the
>     generation following the Teletype era used 9.5" wide paper, so one
>     can find that no problem. 8.5" is hard because the 9.5" is often
>     listed as 8.5" if it has the tear off edges.
>
>     So, I see several choices of pin feed computer paper listed as 8.5"
>     and I''d a little more detail on them.  The one that caught my
>     attention said special order.  If that requires a minimum quantity
>     what would that be, and could you split that into several shipping
>     locations?
>     IP: 76.183.121.152
>
>
>
> --
> Richard Brown
> Adorable Supply Corp.


--
Richard Brown
Adorable Supply Corp.
-- 
---
----
You said "tomorrow" yesterday.

The above comments or recommendations are SWAG. Use at your own risk.
John, W9DDD