Largest of the 1935-36 Diamond Matchbooks offerings, the U3-1 series consists of 156 total subjects, each initially available with either a red, green, or blue border. 83 of the 156 possible subjects within the series are included in this collection along with four additional color variations. Matchbook covers in this group range from VG-VG+ with some lesser and come with original striker fully intact unless otherwise noted. Please note some do have handwritten markings on reverse. Matchbooks included:

Auker (blue), Bejma (green), Birkofer (green), Bishop (green), Bonura (green), Bottomley (red), Brandt (red), Cantwell (blue), Brown (green), Burns (blue), Carleton (red), Cascarella (blue), Coffman (red, missing striker), Collins (green, missing striker), Conlon (blue), Cramer (green), Crowder (red), Cuyler (red), Davis (green), Deringer (red), DeShong (blue), Durocher (green), Earnshaw (red), Fischer (red), Frey (green, missing striker), Galan (red), Galatzer (red), Garms (blue), Grace (blue), Grace (red, missing striker), Hack (blue), Hadley (green), Hale (red), Hatter (red), Hayworth (blue), Herman (green), Hockette (green), Jones (red), Jurges (green), Kennedy (blue), Ker (green), Klein (blue), Kleinhans (green), Knickerbocker (green), Koenig (blue, red), Kowalik (green), Kress (blue), Lee (blue, missing striker), Leonard (green), Linke (blue, green), Lindstrom (blue w/damage to striker), Lombardi (red), Marcum (blue), McNair (Red), Medwick (blue), Moore (blue), Muligan (green), Myatt (red), O'Dea (red), Orsatti (red), Parmelee (red), Pearson (green), Pepper (red), Phelps (blue), Rhodes (green), Root (green), Saltzgaver (red), Selkirk (green, blue), Spohrer (blue), Stainback (green), Stengel (blue), Stephenson (blue), Stine (green), Stone (red, blue), Thevenow (green), Urbanksi (blue),  L. Waner (Green), Warneke (green), Warstler (red), Werber (green), Wilson (blue)