[QUOTE=ArchaicArcane;6170004]As noted in the link above, Jon, "The other unique feature that this machine has is the not-often-seen "M.R." decal under the badge and on the rear of the arm. The "M.R." trademark indicates this 221 was being produced for the Mexican/ South American market. It may have been assembled in Canada as it was found in Canada with a St. John's NB " marked motor." http://www.collectorsweekly.com/stor...collection-242
Thanks, Good to know. I'd would have unknowingly tried to remove them if I had come across a Singer so marked.