late 1960s, the M-Series range had expanded to 37 models: 500 – Alfa Romeo Giulia Sprint GT 501 – Maserati 3500 GT Coupe 502 – Siata Coupe Fiat 1500 503 – Mercedes-Benz 230 SL 504 – Ferrari 250 GT Berlinetta 505 – Autobianchi Bianchina Panoramica 506 – Alfa Romeo Giulia SS 507 – Ford Cortina 508 – Innocenti Morris IM 3 509 – Lancia Flavia Zagato 1800 510 – Opel Kadett Coupe 511 – Fiat 600 512 – Fiat 500 Giardinetta 513 – Fiat 850 514 – Alfa Romeo 2600 Coupe GT 515 – ISO Rivolta Coupe GT 516 – Alfa Romeo Giulia Zagato 517 – Fiat 850 Coupe 518 – Rolls Royce Silver Cloud III "Slant Eye" 519 – Ford Taunus 20 M.T.S. 520 – Lancia Fulvia Coupe 521 – Opel Diplomat 8V 522 – Primula Bianchi 523 – Alfa Romeo Giulia T.I. Super 524 – Simca 1500 525 – Ferrari "LeMans" Peninfarina 526 – 527 – Porsche 912 528 – Fiat 1500 GT Ghia 529 – Alfa Romeo Giulia Canguro 600 530 – Alfa Romeo 2600 Zagato 531 – Alfa Romeo Giulia "Gazella" 532 – Alfa Romeo GS Zagato 533 – OSI 1200 Coupe 534 – Ford Lola GT 535 – 536 – Dino "Ferrari" 537 – Alfa Romeo 2600 Pantera 538 – 539 – Lamborghini 350 GT+ Numbers 526 (Fiat 1100), 535 (Porsche 904), and 538 (Volkswagen 1600 TL) are not mentioned in this data from an original catalog sheet as they were introduced later (Politoys 1968). The M-Series obviously concentrated on Italian vehicles. For example, 76 percent of this catalog's models were Italian, 37 percent alone being Alfa Romeo. Unique models produced that were not found elsewhere were the Iso Rivolta seen above, a later Chevrolet Corvette Pininfarina Rondine Coupe, and the first Lamborghini – bugeye – 350 GT (Rixon 2005, p. 37). From the start, the M-Series had tremendous competition. During the 1960s, each diecast model company had a unique approach and a unique market. Dinky and Corgi generally had different market areas, but were more popular in the U.S. French Dinky and Solido were more popular in France. Tekno was a Danish mainstay as were Gama, Schuco, and Marklin in Germany. More importantly, the Italian market was full. Mercury had been a leader of the Italian diecast industry for a long time, but no sooner had Politoys brought out the M-series, they were joined