To nydepot:You want to reproduce decals,the following demensions are all in inches:lenght of top of M-10-1/8-bottom-17,height of M-13-7/8 width of each of the 4 angles-2-7/8 CENTRAL: C & L recessed from edge-2-1/4 lenght of C & E-1-3/8, N-1-1/2, T-1-1/4, R-1-5/16, A-1-5/8, L-1 height of all letters-1-1/8, width is-5/16, spacing is-3/4.This is the full size logo used on the M1's in need of nose repair or replacement,A & B ends of the ACMU's, sides of standard coaches,RDC's 11 & 19.There is a smaller version used on the sides of the ACMU's,company trucks and M/W equipment,which was about 1/5th the size of the large M.I had a small M,but that disappeared with some of my memorabilia so I can't help you there.This decal is a beauty-the M is reflective and the colors much more vivid.The previous type of decal was water solvent and not as colorful nor did it hold up well after a short time.I was given the logo 40 years ago and it still wears it well.Good luck in your endeavor.