Publisher · US
Colourpicture Publishers
Boston, Massachusetts · 1938–1969
A Boston printing house best known for its “Plastichrome” brand of glossy chrome-era postcards; Plastichrome catalogue numbers begin with the letter P.
A dominant mid-century contractor for roadside attractions, motels, diners and souvenir shops, competing directly with Dexter Press for the modern glossy-postcard market.
The firm went out of business in 1969.


Dating this publisher’s cards
US. A printed ZIP code in the Boston imprint dates a card after 1963, and the company’s 1969 closure caps production. Colourpicture’s decorative corner mark is a publisher house “stamp box” — it identifies the printer and carries the P-catalogue number, but it is not a photographic-paper brand, so it does not date the paper.
Sources: Colourpicture operating span (1938–1969) and the Plastichrome brand / P catalogue prefix: standard deltiology publisher references, incl. The Digital Philatelist; ZIP-code introduction (1963): USPS history. See methodology.