I'm not sure of the timeline when spray-on cancels first appeared on US covers, but it seems this is an early "combination" of a traditional cancellation complimented (if you can call it that) by what is not really a cancellation but a dot matrix marking that duplicates the date and includes the time of processing that piece of mail:
As this example is nearly 16 years old, does it seem as if this is a comparatively early use of a spray-on marking or have these been in use for a lot longer than I realized?
Posted 09/25/2011 4:53 pm
