Some friends and I were kicking around the concept of checklisting Ali career-contemporary issues, worldwide. I'd ultimately like to get the TPGs to expand their horizons on the slab-sized issues but really I am more interested in expanding the knowledge base.
This is the PSA list of cards through the end of his career. I deleted the foreign postage stamps and compressed the back variations:
1940-1970 "Boxing News" Photos
1960 Hemmets Journal (cut and panel)
1962 Swedish Rekord Journal (cut and panel)
1964 Chocolates Simon
1964 Heinz Veb Eggs Boxing Olympic Games
1964 Mac Robertsons Olympic Quiz Cards
1964 Slania Stamps World Champion Boxers
1965 Bancroft Tiddlers Giants Of Sport (page from a booklet; not a card at all)
1965 Collezioni Lampo I Grandi Campioni
1965 Monty Gum International Stars
1965 Perfetti Candy
1965 Swedish Candy
1965-1969 Dutch Serie M.L.H. Mohamed Ali (3 different cards)
1966 Dc Thomson Hornet Gallery Of Sport (cut and panel)
1966 Panini Campioni Dello Sport (regular and Valida backs)
1967 Panini Campioni Dello Sport
1967 Crack Campeones (the idiots at PSA call this “Figuritas Sport”)
1967 Panini Campioni Dello Sport (regular and Valida backs)
1968 Mira Tuttosport I Campionissimi (regular and Regalo backs)
1968 Panini Campioni Dello Sport (regular and Valida backs)
1969 Shindana Toys Afro-American History Mystery Muhammed Ali (regular)
1969 Victoria Vedetten Parade
1970 Baggioli Caccia Al Campione (well, 1972, but who’s counting?)
1971 Barratt & Co. Limited Famous Sportsmen
1971 Panini Olympia (regular and Bisvalida backs)
1971 Panini Olympia Bisvalida
1971 Panini Olympia Brown Letters
1972 Bergmann-Verlag Munchen '72 (regular and panel)
1972 Editorial Bruguera Todo
1973 Panini Campioni Dello Sport
1973 Panini OK VIP Clay/Frazier
1974 Keisa Ediciones Campeones Del Deporte Mundial
1974 Panini Sport Vedettes
1975 Sprengel/Huberty Schneller...Hoher...Weiter (Ali)/Liston
1975 Sprengel/Huberty Schneller...Hoher...Weiter (Ali)/Joe Frazier
1975 S.T.I.G. Muhammad Ali Superstars Stickers
1975 St. John's Natural Ice Cream Muhammad Ali Punching Bag
1975 St. John's Natural Ice Cream Muhammad Ali Wrapping Hands
1976 Americana Munchen Sport-Parade Muhammad Ali
1976 Americana Munchen Sport-Parade Muhammad Ali
1976 Edis Olimpiadi Clay E Frazier
1976 Panini Montreal 76
1976-1982 Sportscaster (several different, with multiple variations)
1977 U.S. Game System Muhammad Ali Blk.History Playing Cards
1978 FKS Publishers Muhammad Ali Guinness/Record Breakers
1978 Swedish Samlarsaker Ali & Superman
1978 Swedish Samlarsaker Ali & Spinks
1979 Brooke Bond & Co. Limited Olympic Greats Muhammad Ali
1979 Quelcom, S.A. Ases Mundiales Del Deporte
1979 Quelcom, S.A. Ases Mundiales Del Deporte (2 panel)
1979 Sorrisi E Canzoni TV-Hand Cut
1979 Spanera Cigar Bands Boksers Muhammed Ali (various colors)
1979 United Press International Muhammad Ali Great Moments In Sports
1979 Venorlandus Limited World Of Sports Muhammad Ali
1979-1981 Panarizon
1980 George Bassett & Co. Muhammad Ali World Record Breakers
1980 Panini Uomini Illustri
1980 Panini Stickers Muhammad Ali
1980-1981 Svijet Sporta Muhammad Ali
1981 Milo/Nestle Great Moments In Sport Muhammad Ali
1981 Smithsonian Institute Champion Of American Sports Muhammad Ali
1981 Topps Thirst Break Comics Muhammad Ali
There are cards missing from this list because PSA either won't grade them or they are too rare for PSA submissions thus far. Some of those cards are:
1960s Exhibit
1967-ish Kid Herman
1960s-1970s Israeli card
1960s Uruguay tin coin
1960s Sport Pix
1962 “pog” (Argentina)
1965 Anteojito (Argentina)
1969 New York Weekly Boxing News
1969 Shindana Toys Afro-American History Mystery Muhammed Ali (large/prototype)

1970s “pog” (Argentina)
1970s Fan Fotos (multiple)
1971 Television Independente de Mexico Ali-Frazier
1972 Ases del Ring (Mexico)
1975 TEKS Ali-Frazier (Philippines)
1976 Grandes Deportistas (Mexico)
1978 Estrellas Del Cuadrilatro (Mexico)
1980 Deportistas (Argentina)
1981 TEKS Holmes-Ali