No.1-class minesweeper (1923)

No.1-class, No.1-class patrol boat, No.1-class minelayer, No.1-class submarine chaser, No.1-class submarine chaser (1943), W-1-class minesweeper, No.1-class landing ship, Class 1, No.1-class patrol boat (1945), Kaiyō No.1-class oceanographic research ship, No.1-class auxiliary minesweeper, YMS-1-class minesweeper, AA-1-class submarine, Chicago and North Western R-1 class, T-1-class submarine, SC-1-class submarine chaser, Ha-1-class submarine, Indian locomotive class WCAM-1, San Diego Class 1 streetcar, ČSD Class E 458.1, APc-1-class transport, ČSD Class ES 499.1, Spokane, Portland and Seattle class E-1, Polar Class, PGM-1-class motor gunboat, South African Class 5E1, Series 1, MGWR Class 1, ČSD Class E 499.1, South African Class 5E, Series 1, Milwaukee Road class EF-1, South African Class 6E1, Series 1, 1.-class torpedo boat, South African Class 7E2, Series 1, Plunger-class submarine, Louisville and Nashville class M-1, Northern Pacific class T-1, Reading Class T-1, GCR Class 1, Class 1 Touring Cars, Spokane, Portland and Seattle class L-1, U-1-class submarine (Austria-Hungary)

South African Class 10E1, Series 1, South African Class 9E, Series 1, Renfe Class 310, Nahang-class submarine, Railroad classes, British Rail Class 317, British Rail Class 360, U-1-class submarine, Class number problem, Classes of United States senators, Renfe Class 333, Southern Pacific GS-1 class, SS Yoshida Maru No. 1, USATC S160 Class, DB Class 628, South African Class 7E3, Series 1, Degrassi: Next Class season 1, British Rail Class 350, South African Class Experimental 1 4-6-2, South African Class 14E, ČSD Class T 458.1, British Rail Class 150, GNR Ivatt 1 Class 0-6-0, Prussian G 8.1, British Rail Class 20, Cotton Belt Class L-1, Atlantic Coast Line R-1 class, Chesapeake and Ohio class M-1, Norfolk and Western LC-1 Class, British Rail Class 415, British Rail Class 312, SCORE Class 1, 1970 Soviet Second Group (Class A), Zone 1, Zerstörer 1-class destroyer, British Rail Class 33, South African Class 1 4-8-0, South African Class 1 locomotives, Baltimore and Ohio class N-1, Type C escort ship, British Rail Class 15, South African Class 61-000, United States Barracuda-class submarine (1951), South African Class 31-000, British Rail Class 16, Half Ton class, SM U-1 (Germany), Type C4-class ship, E-class blimp, Royal Sovereign-class battleship, DB Class V 200

No.1-class, No.1-class patrol boat, No.1-class minelayer, No.1-class submarine chaser, No.1-class submarine chaser (1943), W-1-class minesweeper, No.1-class landing ship, Class 1, No.1-class patrol boat (1945), Kaiyō No.1-class oceanographic research ship, No.1-class auxiliary minesweeper, YMS-1-class minesweeper, AA-1-class submarine, Chicago and North Western R-1 class, T-1-class submarine, SC-1-class submarine chaser, Ha-1-class submarine, Indian locomotive class WCAM-1, San Diego Class 1 streetcar, ČSD Class E 458.1, APc-1-class transport, ČSD Class ES 499.1, Spokane, Portland and Seattle class E-1, Polar Class, PGM-1-class motor gunboat, South African Class 5E1, Series 1, MGWR Class 1, ČSD Class E 499.1, South African Class 5E, Series 1, Milwaukee Road class EF-1, South African Class 6E1, Series 1, 1.-class torpedo boat, South African Class 7E2, Series 1, Plunger-class submarine, Louisville and Nashville class M-1, Northern Pacific class T-1, Reading Class T-1, GCR Class 1, Class 1 Touring Cars, Spokane, Portland and Seattle class L-1, U-1-class submarine (Austria-Hungary), South African Class 10E1, Series 1, South African Class 9E, Series 1, Renfe Class 310, Nahang-class submarine, Railroad classes, British Rail Class 317, British Rail Class 360, U-1-class submarine, Class number problem, Classes of United States senators, Renfe Class 333, Southern Pacific GS-1 class, SS Yoshida Maru No. 1, USATC S160 Class, DB Class 628, South African Class 7E3, Series 1, Degrassi: Next Class season 1, British Rail Class 350, South African Class Experimental 1 4-6-2, South African Class 14E, ČSD Class T 458.1, British Rail Class 150, GNR Ivatt 1 Class 0-6-0, Prussian G 8.1, British Rail Class 20, Cotton Belt Class L-1, Atlantic Coast Line R-1 class, Chesapeake and Ohio class M-1, Norfolk and Western LC-1 Class, British Rail Class 415, British Rail Class 312, SCORE Class 1, 1970 Soviet Second Group (Class A), Zone 1, Zerstörer 1-class destroyer, British Rail Class 33, South African Class 1 4-8-0, South African Class 1 locomotives, Baltimore and Ohio class N-1, Type C escort ship, British Rail Class 15, South African Class 61-000, United States Barracuda-class submarine (1951), South African Class 31-000, British Rail Class 16, Half Ton class, SM U-1 (Germany), Type C4-class ship, E-class blimp, Royal Sovereign-class battleship, DB Class V 200, G&SWR 45 Class 0-6-2T, USS M-1, British Rail Class 17, Indian locomotive class YAM-1, Table tennis at the 2008 Summer Paralympics – Men's individual – Class 1, DN-1, Southern Pacific class AC-1, PKP class Pt31, Table tennis at the 2008 Summer Paralympics – Women's individual – Class 1–2, Great Northern class O-1, SCORE Class 1/2-1600, Table tennis at the 2012 Summer Paralympics – Men's team – Class 1–2, Indian locomotive class WCG-1, British Rail Class 700, K-class blimp, Table tennis at the 2012 Summer Paralympics – Women's team – Class 1–3, LNER Thompson/Peppercorn Class K1, Table tennis at the 2012 Summer Paralympics – Men's individual – Class 1, Table tennis at the 2016 Summer Paralympics – Men's individual – Class 1, Table tennis at the 2020 Summer Paralympics – Women's individual – Class 1–2, Chesapeake and Ohio classes J-1 and J-2, Indian locomotive class WAP-1, Indian locomotive class WAM-1, Table tennis at the 2020 Summer Paralympics – Men's individual – Class 1, South African Class 18E, Series 1, Canadian National Class U-1-f, LNER Thompson Class A1/1, Indian locomotive class WCP-1, H-class blimp, Great Northern class M-1, Table tennis at the 2012 Summer Paralympics – Women's individual – Class 1–2, Soviet locomotive class AA20, Information Object Class (ASN.1), Soo Line L-1 class, Great Northern class Z-1, P 1-class patrol vessel, N-class blimp, List of number fields with class number one, Baire function, Indian locomotive class WDP-1, NIR 1 Class, Great Northern class Q-1, List of Head of the Class episodes, Uskok-class torpedo boat, Southern Pacific Class T-1, List of SC-1-class subchasers (SC-1 to SC-50), LT&SR 1 Class, Indian locomotive class WCAG-1, HAZMAT Class 1 Explosives, Spearhead-class expeditionary fast transport, Red Flag 1-class locomotive, Eagle-class patrol craft, Table tennis at the 2008 Summer Paralympics – Women's team – Class 1–3, Indian locomotive class WDM-1, Table tennis at the 2008 Summer Paralympics – Men's team – Class 1–2, LNER Thompson Class A2/1, DSRV-1 Mystic, Prussian S 10, Prussian T 5, Ahven-class minesweeper