1. In a lettering kit arrangement providing English alphabet letters of a predetermined font and nominal height for manually applying selected letters thereof to a selected substrate in a predetermined order and spacing, having their undersides coated with a pressure sensitive adhesive and releasably mounted on the release agent coated side of a backing sheet, an alignment grid sheet bearing an alignment grid for laying out said selected letters aligned in their said predetermined order on one side of same that is release agent coated, and a transfer sheet having one side of same coated with a pressure sensitive adhesive to which is releasably adhered a release coated backing that is removed for laying said one side of same over the laid out letters for pressure sensitive adherance thereto and manual transfer and application to the substrate, the improvement wherein: said grid comprises a working face, including a head horizontal base line indicia and a foot horizontal base line indicia delineated on said one side of said grid sheet, said foot base line indicia comprising a top base line, a middle base line and a bottom base line extending in parallelism across said one side of said grid sheet with said middle base line centered between said top and bottom base lines, said head base line indicia comprising a base line spaced above said middle base line of said foot base line indicia a dimension approximating three-fourths of said foot lettering nominal height, said font base line indicia top and bottom base lines being spaced from the middle base line thereof a distance approximating one-half the difference between the height of the font capital letters that have horizontally rectilinear upper and lower ends and the height of the font capital letters that have rounded upper and lower ends, said grid working face further comprising closely spaced vertical lines delineated on said one side of said grid sheet across said face, said transfer sheet comprising a transparent film bearing said pressure sensitive adhesive, said grid having a length to receive for layout purposes a predetermined number of the font letters for word forming purposes and said transfer sheet having a length that approximates the length of said grid, with the adhesive coating of said letters having a release from said one side of said grid that is on the order of twenty grams and a release from the substrate that exceeds two hundred grams, with the adhesive coating of said transfer sheet when said backing sheet thereof is removed having a release from the top sides of said letters that is in the range of from about seventy to ninety grams and a release from the substrate that is in the range of from about one hundred to about one hundred twenty grams, said font letters being layable out in uniform horizontal alignment by laying the lower ends of the font capital letters with horizontally rectilinear lower ends aligned with the top base line of said foot base line indicia, laying out the font lower case rounded letters with their lower ends aligned with the middle base line of said foot base line indicia, laying out the font capital letters that have convexly rounded lower ends in tangency with the lower base line of said foot base line indicia, and laying out the font elongated lower case letters with horizontally rectilinear upper portions thereof aligned with said base line of said head base line indicia, with predetermined vertical line separation between adjacent letters to achieve said spacing.
1. In a lettering kit arrangement providing English alphabet letters of a predetermined font and nominal height for manually applying selected letters thereof to a selected substrate in a predetermined order and spacing, having their undersides coated with a pressure sensitive adhesive and releasably mounted on the release agent coated side of a backing sheet, an alignment grid sheet bearing an alignment grid for laying out said selected letters aligned in their said predetermined order on one side of same that is release agent coated, and a transfer sheet having one side of same coated with a pressure sensitive adhesive to which is releasably adhered a release coated backing that is removed for laying said one side of same over the laid out letters for pressure sensitive adherance thereto and manual transfer and application to the substrate, the improvement wherein: said grid comprises a working face, including a head horizontal base line indicia and a foot horizontal base line indicia delineated on said one side of said grid sheet, said foot base line indicia comprising a top base line, a middle base line and a bottom base line extending in parallelism across said one side of said grid sheet with said middle base line centered between said top and bottom base lines, said head base line indicia comprising a base line spaced above said middle base line of said foot base line indicia a dimension approximating three-fourths of said foot lettering nominal height, said font base line indicia top and bottom base lines being spaced from the middle base line thereof a distance approximating one-half the difference between the height of the font capital letters that have horizontally rectilinear upper and lower ends and the height of the font capital letters that have rounded upper and lower ends, said grid working face further comprising closely spaced vertical lines delineated on said one side of said grid sheet across said face, said transfer sheet comprising a transparent film bearing said pressure sensitive adhesive, said grid having a length to receive for layout purposes a predetermined number of the font letters for word forming purposes and said transfer sheet having a length that approximates the length of said grid, with the adhesive coating of said letters having a release from said one side of said grid that is on the order of twenty grams and a release from the substrate that exceeds two hundred grams, with the adhesive coating of said transfer sheet when said backing sheet thereof is removed having a release from the top sides of said letters that is in the range of from about seventy to ninety grams and a release from the substrate that is in the range of from about one hundred to about one hundred twenty grams, said font letters being layable out in uniform horizontal alignment by laying the lower ends of the font capital letters with horizontally rectilinear lower ends aligned with the top base line of said foot base line indicia, laying out the font lower case rounded letters with their lower ends aligned with the middle base line of said foot base line indicia, laying out the font capital letters that have convexly rounded lower ends in tangency with the lower base line of said foot base line indicia, and laying out the font elongated lower case letters with horizontally rectilinear upper portions thereof aligned with said base line of said head base line indicia, with predetermined vertical line separation between adjacent letters to achieve said spacing. 2. The improvement set forth in claim 1 wherein the font is Helvetica.