From the looks of the vehicles portrayed on this Colourpicture Plastichrome post card, it was published in the early to middle part of the 1960's and the publisher was International Hotel Supply Company of Boston, MA. The card is most definitely in excellent condition, having no flaws, damage, or wear and no creases, holes, or tears. The phone number is also an indication of age.... 313 WOodward 1-8000, and a teletype number to boot! The latest technology is tauted also.... "Insured Reservations at Guaranteed Rates by Reservatron - Reserves and confirms your hotel room in seconds." Wow. The card is numbered on the reverse, lower left, 9-66-50 and in the stamp box, P62339.
Thanks for your time today.