Hi, Do a search using http://www.hamiltonphilatelic.org/presentations/postmarks.pdf whereby they describe all known types of cancels including the ones which were sprayed on. elk117 (Modified by Moderator on 2014-10-30 16:45:19)
Hi Doug Another source of info is from http://www.postmarks.org/resources/intro.php but if you do a Google search and enter "sprayed on postage stamp cancellation marks" you end up with a minefield of info. Elk117 (Modified by Moderator on 2014-10-30 16:45:56)
In the UK these are known as "ink jet". That may be a technical term which could apply to US cancels as well. Try Google. Malcolm
