Cashen Diverse Solutions - Glossary [H]Half-PlateA type of large format microfilm.HollerithSome aperture cards may be punched and thus encoded. This hollerith code generally contains the drawing number, drawing size etc.# - A - B - C - D - E - F - G - H - I - J - K - L - M - N - O - P - Q - R - S - T - U - V - W - X - Y - Z |