Thank you Nuno for these 2 nice WWF covers from the Azores / Portugal, picturing the Atlantic Blue Marlin and the White Marlin! (see first Azores post for more information on these stamps)
"Aceite após a hora de corte" is a postmark that some post offices put on letters that are deliveried after the hours of mail collection. In this case this post-office closes at 20:00 and mail is collected at 19:00. (Thanks Nuno for this information!)