CH 2004 AE 4 TARIF DU COEUR, additional red cancellation, letter C6

Switzerland 2010 campaign labels,TARIF DU COEUR , additional red cancellation and-self-adhesive SFS label without value (not in catalog),
AE4, A STANDARD letter with label cancelled CH-5620 Bremgarten 10.06.2010, various time stamp, format C6 with address,
arrival cancellation on the back 5620 Bremgarten 11.06.2010,
(SBK AE 4, Michel -)

Hint:
In principle, this sales promotion measure could only be used once per customer, with the receipt from the flyer being handed in at the same time.