What Is This Type Of Pre-Cancel(?) Is This???

Hello every one! I recently got this Erie,PA. reply card.As my user name suggest's I like cancel's from Erie,PA.&Erie County,PA.
Anyway I looked closer and saw the perferation's( hole's )on the stamp...It appear's to be an O L M and I have never seen this before,Maybe on some( not same letter's ) BOB's but not regular postage.Can anybody fill me in on this type of cancel? If it is a Pre-Cancel.Thank You for your time...HAPPY HUNTING!!

CML = Connecticut Mutual Life.
It is a "perfin", perforated initials to deter employee theft of stamps.
You can find lots of other perfin threads on the board.

Perfins are not actually "precancel" stamps, rather they are perforated with holes typically the initial or a letter or two for identification that the stamps are property of a company or agency and not to be used for non-company correspondence. Perfin stamps by them selves still need to be cancelled by the post office, whereas precancel stamps are not usually cancelled again by the post office.

I have stamps that have both perfins and a precancel on them.

Thank you John Becker&oldguy!! I was wondering about the postal cancel, that is why I thought it was a pre-cancel but it obviously was NOT put through the mail...AGAIN THANK YOU!!
i stil have not figured the quote out yet.

Its too easy Eric. For quite a while I was quoting other posters the old school way, all hypertext and all, until a day when someone asked like you did, and I explained how to to quote someone, and one of the other regular posters said, why work so hard when you can use the "insert quote" button.

On the FORMAT: line above the masssage box that we type in, are 13 buttons, 2nd from right is INSERT QUOTE. Copy what you want to quote, click Insert Quote and click paste with your cursor between (quote) (/quote).