Since the 1980s, many modern postal systems no longer overprint stamps for bulk purchases: bulk mail is franked using barcodes on pre-printed envelopes or on blank adhesive labels.
Bulk mail is franked using barcodes on pre-printed envelopes or on blank adhesive labels. Since the 1980s, many modern postal systems no longer use overprints to indicate bulk purchases.
Since the 1980s, many modern postal systems no longer use overprints to indicate bulk purchases. Bulk mail is franked using barcodes on pre-printed envelopes or on blank adhesive labels.
Since the 1980s, many modern postal systems no longer use overprints to indicate bulk purchases. Bulk mail is franked using barcodes on pre-printed envelopes or on blank adhesive labels.