AJ Veall 1929 illustrated cover for Celestion Radios fine cover. (Image1)

Estimate AU$50

Alex Osborne P/L 1927 cover with illustrations of Super X MotorCycle and Radium & Clinker Cycles and fine AJS MotorCycle on reverse, a cracking cover. (Image1)

Estimate AU$150

Arnott's Motor Supply and Tyre Depot Swan Hill 1927 cover with fine advert for Perdriau Master Cord tyres at left, attractive cover. (Image1)

Estimate AU$80

Automobiles P/L 1929 cover with illustration at left for DeSoto Automobiles. (Image1)

Estimate AU$50

Bay's Motor Agency Perth 1927 cover with illustration at left for Monogram Motor Oils, some minor soiling does not detract from this fine cover. (Image1)

Estimate AU$65

Cowley's Geelong 1927 cover with fine illustration of Velos Racer Cowley Roadster Bicycle at left, great cover. (Image1)

Estimate AU$120

DY Rennie 1927 illustrated cover with illustration of a gun dog and Shot Gun with slogan Use a BSA Shot Gun, great cover. (Image1)

Estimate AU$120

Evan Evans P/L 1927 cover with fine illustration of building in Elizabeth St Melbourne. (Image1)

Estimate AU$50

Express Cycle and Motor Works 1929 cover with fine illustration of an Indian Motor Cycle, very attractive cover. (Image1)

Estimate AU$100

F Owen French cover with 1d red tied by Late Fee Sydney cds and fine illustration of Columbian Wyandottes for Eggs, Meat, Beauty at left, few minor blemishes do not detract from this fine advertising cover. (Image1)

Estimate AU$100

Finley Motor Garage 1930 cover with illustration at left for Hupmobile, some edge damage at right. (Image1)

Estimate AU$70

George Field 1927 cover with full advert on reverse for Harley Davidson The World's Champion Motor Cycle, great cover. (Image1)

Estimate AU$120

Gippsland & Northern Co-Operative 1927 cover with illustration at top and Twin City Tractor on back flap. (Image1)

Estimate AU$50

Grano Bros Yarram 1927 cover with illustration for Douglas Motorcycles at left and great illustration for 1927 Indian Scout Motorcycle on reverse, a cracking cover. (Image1)

Estimate AU$150

Hopper Bros 1930 cover with illustration at lower left for Motorcycle Showrooms, neat cover. (Image1)

Estimate AU$60

JF Matthews and Sons 1927 cover with attractive illustration of Bicycle at left. (Image1)

Estimate AU$80

Manton Magazines 1927 cover with fine illustration of Nicholas Buiding Swanston St Melbourne. (Image1)

Estimate AU$50

McMahon's Auto Service Station Warrnambool 1931 cover with fine illustration at left for the Auto Service Station, missing part back flap does not detract from this neat cover. (Image1)

Estimate AU$65

Moe Motor Garage 1927 cover with Automobile illustration at left, attractive item. (Image1)

Estimate AU$50

Morgan & Wacker Brisbane 1930 window faced envelope with illustration of Motor Cycle at top, minor edge fault. (Image1)

Estimate AU$45

MS Regal Ltd 1929 cover with fine illustration of Rega Utility Spraying Outfit at left. (Image1)

Estimate AU$65

Pioneer Cycle and Motor Works 1927 cover with advert for Indian Motocycles and Pioneer & Excelsior Cycles on reverse, attractive cover. (Image1)

Estimate AU$80

Rapson & Dutton 1930 illustrated cover with Engineer at Grinding machine. (Image1)

Estimate AU$50

Sim King P/L Launceston 1927 cover with fine illustration at left of BSA the World's Greatest Motor Cycle Value and with advert on reverse for BSA Motor Bicycle, roughly opened at left but great advertising cover. (Image1)

Estimate AU$75

TC Hoffman 1927 cover with illustration for Trusty Triumph Motor Cycles, great cover. (Image1)

Estimate AU$120