If I'm not mistaken this is two snoopy printing blocks that had the metal print plates mounted but were never cut into single blocks? Both of the Snoopy images are the same. Both dated 1968 United Feature Syndicate. The block measures 4" x 2 3/4".
The metal plates each measure 1 5/8" x 1 7/8". The item "Printing Letterpress Printers Block, Snoopy Dated 1968" is in sale since Tuesday, June 6, 2017.
This item is in the category "Business & Industrial\Printing & Graphic Arts\Printing & Graphic Essentials\Type, Cuts & Printing Blocks". The seller is "doit_onee" and is located in Greeley, Colorado. This item can be shipped to United States, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Uruguay, Guadeloupe, Iceland, Aruba, Belize, Dominica, Grenada, Saint kitts and nevis, Turks and caicos islands, Bangladesh, Brunei darussalam, Bolivia, Egypt, French guiana, Guernsey, Gibraltar, Jersey, Jordan, Cambodia, Liechtenstein, Luxembourg, Monaco, Macao, Martinique, Nicaragua, Pakistan, Paraguay, Canada, South africa, Antigua and barbuda, Saint lucia, Barbados, Bermuda, Cayman islands, Sri lanka, Maldives, Oman, Reunion, Montserrat.