Unique combination of "before" and "after" conversion APC stamps (with changes over the course of 3 days) in mint condition

What is unique about this particular combination of APC stamps in this lot?
It consists of pre- and post-conversion APC stamps (back from 2012), showing:
  • 8/20/2012 -  1¢ original style APC stamp (with the entire margin) (#CVP57 based on Scott catalog's convoluted listing of these); 1 day prior to the conversion.
  • 8/21/2012 – 45¢ new style APC stamp, and still with “02  1P” PSD (and with the machine # 09241293 that matches the 8/20/2012 stamp) (#CVP85); the day of the conversion.
  • 8/22/2012 – 4¢ single of the new style APC stamp a day later, but now changed to the “06  2S” PSD (and now the machine # is changed to 08309225) (#CVP85); 1 day after the conversion.

Amazing changes in the course of just 3 days!   ... and very few people have that combination, because it required that 
1) you knew when the conversion was going to take place and 
2) that the PSD would change the day following the conversion)!

The zip code of the 3 stamps dated August 20-22, 2012 is 75043, which is one of two post offices in Garland that has an APC machine (the other is at zip code 75044).  At the time of the change, the APC machines were "upgraded" (ie: mostly internally, including new computers & monitors and output bin), but the external machine was the same.   The photo in illustration #2 is of the exact machine at zip code 75043 on the day of the upgrade (August 21, 2012).   So, if you're a specialty collector of APC stamps, you're welcome to use this photo as part of your own collection should you win this lot.

To my knowledge, I am the only one that has this kind of 3-day combination of APC stamps available that show the transition between the old and upgraded APC labels in 2012!   The 45¢ rate was the 1 ounce letter rate in effect at that time.

This is fantastic lot has "before & after" versions with 3 different consecutively dated APC stamps

A great lot for the APC / ATM specialist collector !

I have managed to put together 4 lots like this, all identical; the scan is representative of what you will be receiving.

--> Please note that if using the "ebay standard envelope" shipping option, that we are NOT allowed to use a stiffener, thus the envelope is not being  protected from being folded or creased in the US Postal Service automated processing equipment or by the carrier.  Thus, while "ebay standard envelope" is cheaper (and does provided tracking), I would personally rather ship via "USPS Ground Advantage" (which is fully tracked and insured), as that allows me to use heavy corrugated board stiffeners to more adequately protect your item while in transit.    Foreign Airmail shipments are possible, but are NOT tracked and shipped at the buyer's risk.

Note: foreign shipments are possible and only via the eBay Global Shipping Center (which will determine the postage that you will have to pay)!

--> Please note that I have far more APC / SSK / CVP items available than I have time to list on ebay; if you're looking for something particular, I can create a special ebay lot just for you!   So feel free to contact me with questions!