This vintage advertising ink blotter features the Philco TechRep Division and showcases an Aircraft Identification Series No. 1 theme. Printed in 1950, it displays detailed black silhouettes of military aircraft, including the B-36 Long Range Heavy Bombardment Airplane, the C-54 "Skymaster" Low Wing Monoplane Transport, and the PBM "Mariner" Patrol Bomber and Cargo Transport. Each aircraft is shown from multiple angles, providing an informative and visually striking design for aviation enthusiasts and collectors alike.

The blotter includes a three-month calendar for October, November, and December 1950 on a blue background, enhancing its practical desk accessory appeal. The piece is printed on coated card stock with a smooth finish and features a black, blue, and white color scheme. The bottom of the blotter prominently displays the Philco TechRep Division branding with a small Philco Service logo in the lower right corner, confirming the advertiser's identity. This item is a great collectible for advertising ephemera, aviation memorabilia, and mid-century promotional items. Dimensions are not explicitly provided but the image suggests a standard blotter size.

Collectors will appreciate the historical significance of the 1950 calendar, the clear aircraft illustrations, and the direct branding from a notable electronics and service company of the era. This blotter is a fine example of mid-20th century advertising materials that combine educational content with functional office use.