Service bureaus (Was: Tek 4051 firmware listing

Mike Loewen mloewen at
Sun Dec 12 17:46:49 CST 2010

On Sun, 12 Dec 2010, Chuck Guzis wrote:

> On 12 Dec 2010 at 16:04, William Donzelli wrote:
>>> Back in the "good old days", IBM made the "Verifier" punch.  It was
>>> part of the 029 punch series, but did NOT punch data onto cards.
>> 059, officially.
> Wasn't there also a version of the 029 with the verifier as an option
> (i.e. a switch on the keyboard panel that said "Verify")?

    The 129 models 1 and 3 could both punch and verify:

    The Punch/Verify switch is on the left.

    I don't know of any 029s with the verify option, only the 059 verifier.

Mike Loewen				mloewen at
Old Technology

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