Netherlands: 1863, cds "ROTTERDAM, 15/4 63", frame postmark "FRANCO", red French
Netherlands
1863, cds "ROTTERDAM, 15/4 63", frame postmark "FRANCO", red French border postmark "PAYS-BAS, 17 AVRIL 63", black "PP", red "4R." and arrival postmark cds "GIBRALTAR A, AP 23 63" on stampless international cover via France and Spain to Gibraltar. Various transit stamps on the reverse. Interesting...