tarawa, the hoods, emblems, and grilles were changed some through the years.
The hood you have was made for different emblems than a 1961 Cub had.
Below is a page from the 1955 Cub owner's manual, showing the hood you have, and the original emblems it used.
http://farmallcub.com/rudi_cub/www.clea ... e%2003.jpg
Below are listings for the emblems at TM Tractor, you can look at the pics.
http://www.tmtractor.com/new/tg/6728fp.htm
http://www.tmtractor.com/new/tg/817fp.htm
Below is a page from the 1959 Cub owner's manual, showing the next style of hood and emblems.
The emblem in your pic looks like the correct one for a 1961 Cub.

http://farmallcub.com/rudi_cub/www.clea ... age-04.jpg