Nels_P_Olsen: Miracle Equipment Company ad, Billboard Jun 27 1953 p51
Nels_P_Olsen: Miracle Equipment Company ad, The Billboard, Feb 19 1955 p61
Nels_P_Olsen: Miracle Equipment Company ad, Parks & Recreation, Feb 1960 p104-105
Nels_P_Olsen: Miracle Equipment Company ad, Parks & Recreation, Feb 1960 p106
Nels_P_Olsen: Miracle Equipment Company ad, Parks & Recreation, May 1961 p239
Nels_P_Olsen: Miracle Equipment Company ad, Parks & Recreation, May 1961 p240-241
Nels_P_Olsen: Miracle Equipment Company ad, Parks & Recreation, May 1961 p242
Nels_P_Olsen: Miracle Equipment Company ad, BoxOffice, Feb 6 1961
Nels_P_Olsen: Miracle Equipment Company ad, Parks & Recreation, Mar 1962 p115
Nels_P_Olsen: Miracle Equipment Company ad, Parks & Recreation, Apr 1962 p171
Nels_P_Olsen: Miracle Equipment Company ad, Parks & Recreation, Apr 1962 p172
Nels_P_Olsen: Miracle Equipment Company ad, Parks & Recreation, Sep 1963 (back cover)
Nels_P_Olsen: Miracle Equipment Company Ad, Parks and Recreation, Mar 1965 p172
Nels_P_Olsen: Miracle Equipment Company Ad, Parks and Recreation, Mar 1965 p173
Nels_P_Olsen: Miracle Equipment Company Ad, Parks and Recreation, Oct 1965 p599
Nels_P_Olsen: Miracle Equipment Company Ad, Parks and Recreation, Oct 1965 p600
Nels_P_Olsen: Miracle Equipment Company Candy Cane City, BoxOffice, Apr 18 1966
Nels_P_Olsen: Miracle Equipment Company Sputnik, Popular Mechanics, Aug 1966 p79
Nels_P_Olsen: Miracle Equipment Company Ad, Parks and Recreation, Oct 1966 p845
Nels_P_Olsen: Miracle Equipment Company Ad, Parks and Recreation, Oct 1966 p846
Nels_P_Olsen: Miracle Equipment Company Ad, Parks and Recreation, Oct 1966 p847
Nels_P_Olsen: Miracle Equipment Company Ad, Parks and Recreation, Oct 1966 p848
Nels_P_Olsen: Miracle Equipment Company Ad, Parks and Recreation, Oct 1966 p849
Nels_P_Olsen: Miracle Equipment Company Ad, Parks and Recreation, Oct 1966 p850
Nels_P_Olsen: Miracle Equipment Company ad, Parks and Recreation, Mar 1967 p87
Nels_P_Olsen: Miracle Equipment Company ad, Parks and Recreation, May 1967 (inside back cover)
Nels_P_Olsen: NRPA Congress review, Dec 3-7 1967, Miami Beach, FL, Parks and Recreation, Feb 1968 p39
Nels_P_Olsen: Astro City, Playground Trends, Parks and Recreation, May 1968 p27
Nels_P_Olsen: NRPA Congress anouncement, Oct 13-17 1968, Seattle, WA, Parks and Recreation, Sep 1968 p38
Nels_P_Olsen: Miracle Equipment Company ad, Parks and Recreation, Sep 1968 p56-57